Density+Pop+Can+Lab

Sarah Wick Group Members: Oscar Qiu, Larrisa Chen, Cody Meyers Sinking Can of Cherry Coke vs Floating Diet Coke __Materials __
 * 1) One 12 fluid ounce can of Diet Coke
 * 2) One 12 fluid ounce can of Cherry Coke
 * 3) 2000 mL graduated cylinder
 * 4) Triple beam balance (to the 10ths)
 * 5) Copper block (preferably around 10 mL)
 * 6) 25 mL graduated cylinder
 * 7) 250 mL beaker
 * 8) Paper towels
 * 9) Tap water
 * 10) Pencil
 * 11) Paper

__Procedure __
 * 1) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Take the mass of the Cherry Coke can (unopened) using the triple beam balance that goes to the tenths (zeroed).
 * 2) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Once the balance points to zero, record the mass.
 * 3) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Fill a 2000 mL graduated cylinder at least to 1000 mL with tap water.
 * 4) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Record this volume of the tap water in the graduated cylinder.
 * 5) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Tilting the graduated cylinder making sure not to spill water, slowly drop the Cherry Coke (unopened) into the graduated cylinder to prevent a splash.
 * 6) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">With the tap water and Cherry Coke in the graduated cylinder take the volume.
 * 7) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">This is the water displacement method, subtract the volume of the water and the cherry coke by the volume of the water to get the volume of the unopened Cherry Coke.
 * 8) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Repeat steps 1-7 two more times for trial 2 and trial 3.
 * 9) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Average out the 3 trials of the mass of the Cherry Coke, and the volume of the Cherry Coke.
 * 10) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Using the averages for mass and volume calculate the density of the unopened Cherry Coke using the formula mass(g)/volume(mL).
 * 11) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Take the mass of the Diet Coke can (unopened) using the triple beam balance that goes to the tenths(zeroed).
 * 12) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Once the balance points to zero after adjusting the weights record the mass.
 * 13) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Fill a 25 mL graduated cylinder between 10 mL and 15 mL.
 * 14) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Record the volume of water in the 25 mL graduated cylinder.
 * 15) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Tilting the graduated cylinder making sure no water spills out, slowly drop the copper block in.
 * 16) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Record the volume of the copper block and water in the graduated cylinder.
 * 17) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Subtract the volume of copper block and water by the volume of the water to get the volume of the copper block.
 * 18) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Fill a 2000 mL graduated cylinder at least to 1000 mL with tap water.
 * 19) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Record the volume of the tap water in the graduated cylinder.
 * 20) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Tilting the graduated cylinder making sure no water spills out slowly drop the unopened Diet Coke can in to prevent a spill.
 * 21) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Then drop the copper block into the graduated cylinder to make the Diet Coke can sink.
 * 22) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Record the volume with both the copper and Diet Coke can in the water.
 * 23) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Subtract the volume from #22 by the volume from #19 to get the volume of the unopened Diet Coke can.
 * 24) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Repeat steps 11- 23 for 2 more trials for a total of 3 trials.
 * 25) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Average out 3 trials of the mass of the Diet Coke, and the 3 trials of volume of the diet coke.
 * 26) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Using the averages for mass and volume calculate the density of the unopened Diet Coke using the formula mass(g)/volume(mL).
 * 27) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Take a 250 mL beaker and place it on a triple beam balance to find the mass of the beaker.
 * 28) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Record the mass of just the beaker.
 * 29) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Fill the beaker to 100 mL with water.
 * 30) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Then place it back on the triple beam balance and record the mass.
 * 31) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Subtract the mass of the beaker and water by just the beaker to get the mass of the water.
 * 32) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Repeat steps 26-30 for 3 trials.
 * 33) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Average out the mass and volume of the water for the 3 trials.
 * 34) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Using the averages find the density of tap water by dividing mass(g)/volume(mL).
 * 35) <span style="background-color: transparent; color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 110%; text-decoration: none; vertical-align: baseline;">Com par e the densities of the Cherry Coke to tap water and the Diet Coke to tap water to answer the essential question.

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 90%;">__Data__
 * Cherry Coke ||  || Trial 1 || Trial 2 || Trial 3 || Average ||
 * Mass ||  || 383.20g || 383.20g || 383.05g || 383.15g ||
 * Volume of Water and Can ||  || 1360mL || 1390mL || 1390mL ||   ||
 * Volume of Water ||  || 980mL || 1000mL || 1000mL ||   ||
 * Volume of Cherry Coke(can) ||  || 380.mL || 390.mL || 390.mL || 387 mL ||
 * Density ||  ||   ||   ||   || 0.990 g/mL ||


 * Diet Coke ||  || Trial 1 || Trial 2 || Trial 3 || Average ||
 * Mass ||  || 374.15g || 374.10g || 374.15g || 374.13g ||
 * Volume of Water and Can with Block ||  || 1400mL || 1400mL || 1400mL ||   ||
 * Volume of Water ||  || 100mL || 100mL || 100mL ||   ||
 * Volume of Copper Block ||  || 8mL || 8mL || 8mL ||   ||
 * Volume of Diet Coke(can) ||  || 392mL || 392mL || 392mL || 392mL ||
 * Density ||  ||   ||   ||   || 0.954 g/mL ||

__<span style="font-family: Arial,Helvetica,sans-serif; font-size: 90%;">Calculations __ __Conclusion and Reflection__ I concluded a can of Diet Coke floats in water because it is less dense than water, and a can of Cherry Coke sinks in water because it is denser than water. Supported by the calculations, the density of water is less than the Cherry Coke but greater than the Diet Coke. First, we found the density of Cherry Coke by finding the mass and volume of the can unopened. We measured the mass using the triple beam balance, and found the volume using the water displacement method by putting water in a graduated cylinder, then adding the can, and subtracting the two volumes. We did three trials of each to ensure precision. Next, we found the density of Diet Coke by finding it’s mass and volume of the unopened can. The mass was measured the same way as the Cherry Coke was, but because the Diet Coke floated in water, we needed to weigh it down in the graduated cylinder to measure the volume. We did this by adding a copper block. Knowing the copper block would add to the volume in the graduated cylinder, we first found the volume of it using water displacement so we would know what to also subtract from the total volume. We also performed three trials of finding the mass, total volume, and volume of the copper block to make sure the measurements taken were precise. Finally, we found the density of water to compare to the densities of the Cherry Coke and Diet Coke. We measured the mass of an empty beaker, then a beaker with 100mL of water every time, keeping the volume constant. Subtract the empty beaker measurement from the beaker with water to get the mass of water. Once we had the densities of the two different cans and the water, we compared them to come to the conclusion that Cherry Coke is denser than water, while Diet Coke is less dense than water. If I could do this lab over again I would try finding the density of the liquid inside the cans because they might contribute to the reasons why the densities differ. It could also show differences in the cans that hold the liquid. There could have been error in our measuring if we did not dry the cans or copper block completely before putting it back in the graduated cylinder for trail two or three. Another possible error could be the drops of water left in the graduated cylinder after trials, and adding to the mass. I would divide the eight points evenly in the group giving each person two points. We all contributed equally by splitting up the tasks and doing our part to answer the question. We helped each other understand what exactly needed to be done, and delegated and worked hard to complete this lab to the best of our ability.
 * Tap Water ||  || Trial 1 || Trial 2 || Trial 3 || Average ||
 * Mass of Water and Beaker ||  || 199.35g || 199.35g || 199.35g ||   ||
 * Mass of Beaker ||  || 103.23g || 103.23g || 103.25g ||   ||
 * Mass of Water ||  || 96.120g || 96.120g || 96.100g || 96.113g ||
 * Volume of Water ||  || 100.mL || 100.mL || 100.mL || 100.mL ||
 * Density ||  ||   ||   ||   || 0.961 g/mL ||
 * || Cherry Coke ||  || Diet Coke ||   || Water ||   ||
 * Mass || 383.20g ||  || 374.15g ||   || 96.120g ||   ||
 * || 383.20g ||  || 374.10g ||   || 96.120g ||   ||
 * || __+383.05g__ ||  || __+374.15g__ ||   || __+96.100g__ ||   ||
 * || 383.15g ||  || 374.13g ||   || 96.113g ||   ||
 * Volume || 380.mL ||  || 392mL ||   || 100.mL ||   ||
 * || 390.mL ||  || 392mL ||   || 100.mL ||   ||
 * || __+390.mL__ ||  || __+392mL__ ||   || __+100.mL__ ||   ||
 * || 387mL ||  || 392mL ||   || 100.mL ||   ||
 * Density || __383.15g__ ||  || __374.13g__ ||   || __96.133g__ ||   ||
 * D=M/V || 387mL || =0.990g/mL || 392mL || =0.954g/mL || 100.mL || =0.961g/mL ||
 * Density || __383.15g__ ||  || __374.13g__ ||   || __96.133g__ ||   ||
 * D=M/V || 387mL || =0.990g/mL || 392mL || =0.954g/mL || 100.mL || =0.961g/mL ||

Anna Bandecca Diet Coke vs. Cherry Coke Lab

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Anna Bandecca, Carly Garrow, Seth Rimdzius Diet Coke vs. Cherry Coke Lab

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; vertical-align: baseline;">__Essential Question:__ <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;"> Why does the Cherry Coke sink and the Diet Coke float in water?

Procedure:
 * 1) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using a Balance scale, find the mass of the Diet Coke before opening.
 * 2) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Open the can and pour the soda into a 1000 mL beaker, then stir in order to release the carbonation in the pop.
 * 3) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Find the mass of the empty can using the balance scale.
 * 4) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Fill the entire can with water, wiping any excess water from the top with a paper towel.
 * 5) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Pour the water into a 2000 mL graduated cylinder to find the volume of the entire inside of the can.
 * 6) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Pour the flat liquid back into the can using a funnel.
 * 7) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Measure the mass of the can with the flat liquid.
 * 8) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Clean the graduated cylinder and beaker, drying the inside with a paper towel.
 * 9) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Calculate the difference between the mass of the unopened can and the mass of the empty can to find the mass of the liquid and carbon dioxide together.
 * 10) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the calculation from #9 and the volume from #5, calculate the density of the inside contents.
 * 11) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the mass of the empty can (#3) and the volume of the can (#4), calculate the density of the can.
 * 12) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Add the density calculations from #10 and #11 together to get the density of the entire can of Diet Coke.
 * 13) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Subtract the mass of the can and the flat liquid (#7) from the mass of the unopened can (#1) to calculate the amount of Carbon Dioxide in the Diet Coke.
 * 14) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Repeat #1-13 with the Cherry Coke.

<span style="background-color: transparent; color: #000000; display: block; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;"> Data: Diet Coke
 * || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">Mass || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">Volume ||
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">Unopened Can || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">366.98 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">- ||
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">Can || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">15.71 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">- ||
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">Can and Flat Liquid || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">363.49 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">- ||
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">Inside Can || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">- || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">370 mL ||

Cherry Coke
 * || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">Mass || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">Volume ||
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">Unopened Can || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">383.71 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">- ||
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">Can || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">14.38 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">- ||
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">Can and Flat Liquid || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">368.71 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">- ||
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">Inside Can || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">- || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-align: center; text-decoration: none; vertical-align: baseline;">370 mL ||

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 14pt; text-decoration: none; vertical-align: baseline;">Calculations:

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">Cherry Coke:
 * || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">383.71 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">unopened can ||
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-align: right; text-decoration: none; vertical-align: baseline;">- || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; vertical-align: baseline;">__368.71g__ || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">can and flat liquid ||
 * || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">15.00 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">carbon dioxide ||
 * || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">383.71 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">unopened can ||
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-align: right; text-decoration: none; vertical-align: baseline;">- || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; vertical-align: baseline;">__14.38 g__ || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">can ||
 * || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">369.33 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">liquid + CO₂ ||
 * || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">369.33 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">liquid + CO₂ ||

<span style="background-color: transparent; color: #000000; display: block; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;"> Diet Coke:
 * || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">366.98 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">unopened can ||
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-align: right; text-decoration: none; vertical-align: baseline;">- || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; vertical-align: baseline;">__363.49 g__ || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">can and flat liquid ||
 * || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">3.49 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">carbon dioxide ||
 * || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">366.98 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">unopened can ||
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-align: right; text-decoration: none; vertical-align: baseline;">- || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; vertical-align: baseline;">__15.71g__ || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">can ||
 * || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">351.27 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">liquid + CO₂ ||
 * || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">351.27 g || <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 12pt; text-decoration: none; vertical-align: baseline;">liquid + CO₂ ||

Density of Diet Contents:  __351.27 g__ = 0.95 g/mL   370 mL Density of Diet Can:   __15.71 g__ = 0.04 g/mL   370 mL Density of Contents and Can:   0.95 g/mL + 0.04 g/mL = 0.99 g/mL Density of Cherry Contents:  __369.33g__ = 1.0 g/mL   370 mL Density of Cherry Can:   __14.38 g__ = 0.04 g/mL    370 mL Density of Contents and Can:1.0 g/mL + 0.04 g/mL = 1.04 g/mL

<span style="background-color: transparent; color: #000000; display: block; font-family: Arial; font-size: 14pt; text-decoration: none; vertical-align: baseline;">Conclusion:

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Our experiment returned inconclusive data. Although we were able to calculate that the Diet Coke is less dense then water, and the Cherry Coke is more dense, we assumed the density of the water. Therefore we have nothing to compare our results to, making us unable to answer the essential question.

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; vertical-align: baseline;">__Reflection__ <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">During our experiment, we had several things that we could have improved upon. Although we did successfully find a way to compensate for the amount of Carbon dioxide, our method added to the sources of error. We also did not take measurements of the water that the Diet and Cherry Cokes were floating/sinking in because we assumed that the mass of the water would be 1.00 g/mL. Because of this, we could not decisively conclude anything from our experiment. There were many things that caused an increase in error. Most of these were precision in equipment and our procedure method, but there was one thing that was a human error. While completing the experiment, we tried a number of different things while trying to work out a solution to the problem at hand. Thus, we had no plan from the immediate start, so we tried different things to see what would work after considering them in theory for awhile. We did not take into account the carbonation inside the pop before we opened the can and released all the Carbon dioxide. Making a revised plan to compensate, we had to transfer the liquid pop back and forth a couple times, losing some liquid in the process, increasing our error. While doing this, another source of error was when we spilt some of the Cherry Coke while transferring the liquid back into the can. This may have effected the calculation of Carbon dioxide, but ended up not effecting the density of either the can or the contents. During our procedure, we forgot to totally dry the inside of the empty pop can, so there may have been excess water/soda left in the can at the bottom, which could account for the difference in mass of the cans. Another source of error lies in the instruments we used to take our measurements. The 2000mL cylinder may have been the most precise graduated cylinder that could hold the whole can of pop, but it is not a very precise instrument in itself. It could only round to the tens place, having only two significant digits, effecting the rounding of our calculations. If we would have used another smaller, more precise graduated cylinder, we would have had to fill, empty and clean the instrument out multiple times to find the measurements of the liquid, most likely losing even more of the liquid in the process. If we were to do this experiment again, I think we should have started by first planning every detail out, considering every possible factor and variable that could come up. When we started this time, we only had a slight plan of what we needed to accomplish, and then we just thought along as we progressed, figuring out new solutions to the new problems. I think we could have been more prepared for what we were going to do before we even touched any of the equipment. We jumped around a lot as one idea came and another left. At the end, we did have some data that we did not end up needing. I think we did do a very thorough job. Because we went along without a plan, I think we were able to think more on-our-toes, coming up with different ways to solve our problems as they arose. If we hadn’t done something first, we wouldn’t have gotten the idea for the next. Since we realized that there was Carbon dioxide, and that it had a mass and volume of its own, we came up with a way to compensate for the release of the gas. Unlike some of the groups, we were able to totally dry the graduated cylinder before using it again, causing a decrease in error. We also found the densities of the can and its contents. We were able to more fully complete the question, although we did leave out one very important detail, the water density. Because we did not do this one step, we could not conclude anything from our experiment, though.

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; vertical-align: baseline;">__Self-Evaluation__ <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">I think that the points should be split evenly amongst the three of us. We all worked really well together, working efficiently and effectively. I don’t think there was any wasted time or movements. Everyone contributed equally during the experiment. Each person had something different to bring to the table, both during the actual experiment and in the report. Everyone added to the procedure and to the overall ideas that were bouncing all over.

Hunter Truitt Group members: Hunter Truitt, Alex Mong, and Mike Moran

Essential Question: Why does a can of Diet Coke float and a can of cherry coke sink in water.

Needed materials:

Un-opened can of Diet Coke Unopened can of Cherry Coke Triple Beam balance 10mL Graduated cylinder Room Temperature Water

Lab procedure: 10. Make a conclusion.
 * 1) Find the mass of the un-opened diet coke.
 * 2) Find the mass of the un-opened cherry coke.
 * 3) Calculate the density of both of the cans using the volume listed on the cans
 * 4) Find the mass of an empty 10mL graduated cylinder.
 * 5) Fill the Graduated cylinder with room temperature water.
 * 6) Find the mass of the full graduated cylinder.
 * 7) Calculate the density of the water.
 * 8) Compare the densities of all three liquids.
 * 9) Report all findings

Data Diet Coke
 * || Result  ||
 * Mass* ||  376.3 g   ||
 * Volume || 355ml ||
 * Density ||  1.06 g/mL   ||
 * An electronic scale was used

Cherry Coke
 * || Result ||
 * Mass* || 389.5 g ||
 * Volume || 355ml ||
 * Density || 1.10 g/mL ||
 * An electronic scale was used

Water Conclusion: The results of our attempts at proving why cherry coke sinks and die coke floats in water are inconclusive. We have arrived at this consensus due to the close proximity of the over-all densities of both the cherry and diet coke along with the water. In our process of proving the essential question true we were not accurate enough in our measurements to definitively prove why cherry coke sinks and diet coke floats in water.
 * || Trial 1  ||  Trial 2  ||  Trial 3  ||
 * Mass of empty graduated cylinder ||  22.182 ­ g   ||  22.659 g   ||  24.177 g   ||
 * Mass of full graduated cylinder ||  28.074 g   ||  30.519 g   ||  27.148 g   ||
 * Volume ||  5.80 mL   ||  7.97 mL   ||  3.12 mL   ||
 * Density ||  1.02 g/mL   ||  .986 g/mL   ||  .952 g/mL   ||

Reflection:

Looking back at this lab I see there are many ways our procedure could have been improved. The first major problem with our data was we used the volume given to us on the soda can as the over-all volume when in reality it only represents the liquid. To overcome this issue we should have used water displacement to find the overall density of the can. This would have been a better way to handle the procedure do to the fact that with the amount on the can you are not taking into account the volume of carbonation or the volume the can. Another problem we faced was a lack of precision in our instruments. To take the initial measurement of the can we used an electronic scale, which only went to the tenths decimal place where as, if we had used a triple beam balance we would be accurate to the thousandths place. This impacted our results by having 2 less significant digits in our calculations. The third and final logical point of error I can find in our procedure is human error. This plays a minor role in our calculations due to multiple trials balancing out the outlying results. With most of our points of error resolved I could conclude that our results would have been more accurate and possibly conclusive to the essential question had we taken these factors into account during the lab.


 * Group Summary**

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Lessons Learned:
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">assume nothing (Anna, Hunter)
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">think before you act... go into something with a game plan (Anna)
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">things are not always clear (Sarah)
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">never take 'shortcuts' in measurements (Hunter)
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">you must account for all aspects of the problem, not just focus in on one or two

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Major Sources of Error:
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">2000 mL cylinder wasn’t very precise
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">used an electronic scale which is less precise than triple-beam (Hunter)
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">too many exchanges of liquids; lost a lot (Anna)
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">excess liquid left in cans skewed results (Anna)
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">did not account for all aspects of the can: the can, the liquid, the carbon dioxide by not opening the cans to investigate the contents (Hunter, Sarah)
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">assumed density of water (Anna)
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">assumed the measurements of the cans on the label (Hunter)
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">didn’t get actual volume of the whole can, just the inside (Anna)
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">just trying things at random without much thought process (Anna)
 * <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">significant digits and rounding led to less precise calculations

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Differences in Approach: Sarah’s group used the water displacement method in a 2000 mL graduated cylinder to find the volume of the cans. Anna’s group found the volume of the cans by pouring out the contents and filling it with water, and then pouring that into a beaker and measuring it. Hunter’s group used the volume listed on the side of the cans as their measurement for volume. Sarah and Hunter’s group found the density of water, while Anna’s group assumed the density and could not get clear results. Although there were differences in ways each group approached this lab, we all got useful results. Sarah and Hunter's group focused more on the outside layers, looking at the can in a whole. Anna's group focused on the contents of the can, while making an attempt to get the can's density.

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Perfect Procedure:
 * 1) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Balance the triple-beam scale, making sure it is zeroed.
 * 2) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Find mass of unopened can of Cherry Coke using the balance. Record.
 * 3) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Repeat step 2 for the Diet Coke.
 * 4) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Fill a 25 mL graduated cylinder with around 10 mL of water. Record the volume.
 * 5) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Slowly tilt the cylinder and slowly drop a copper weight in.
 * 6) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Measure the new water level to find the displacement, or volume of the weight. Reocrd.
 * 7) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Take the weight out by pouring the water out.
 * 8) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Fill a 2000 mL graduated cylinder with about 1000 mL of water. Record the volume.
 * 9) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Tilt this cylinder gradually and drop the can of Cherry Coke in the water. Record the volume.
 * 10) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Pour out the water and take the can out. Dry out the cylinder and the can.
 * 11) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Fill the 2000 mL graduated cylinder again, with about the same amount of water. Record the volume.
 * 12) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Tilting the cylinder, add the Diet Coke can to the water.
 * 13) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Because the Diet can floats, add the copper weight to it so it will float.
 * 14) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Record the volume after the Diet can is under water.
 * 15) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Dry can and cylinder fully. Make sure there is no water left over in the bottom of the cylinder.
 * 16) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Open Cherry Coke can.
 * 17) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Pour out contents into 2000 mL cylinder.
 * 18) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Swirl, stir, and/or shake the pop until it is ‘flat’, all carbonation is gone. Use a glass stirrer to swirl and stir the pop.
 * 19) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Record the volume of the flat liquid.
 * 20) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Place aside the cylinder. Take the empty Cherry Coke can and make sure the inside is completely dry. If needed, take a towel and stuff inside to absorb any excess pop.
 * 21) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Once empty, take the mass of the Cherry can using the triple-beam balance. Record mass.
 * 22) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">After taking the mass of the Cherry Coke, pour the flat liquid back into the can, using a funnel.
 * 23) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Take the mass of the can plus the flat liquid. Record mass.
 * 24) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Pour the flat liquid out. You will no longer need it.
 * 25) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Dry the empty can, making sure no excess pop is still in there.
 * 26) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Fill the can completely with water.
 * 27) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Wipe off any excess water that leaks out of the top.
 * 28) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Pour the water into the 2000 mL graduated cylinder.
 * 29) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Record the volume.
 * 30) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Repeat steps 17-30 with the Diet Coke can.
 * 31) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Take the mass of an empty 25 mL cylinder with a triple-beam scale. Record.
 * 32) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Fill the graduated cylinder with any amount of tap water.
 * 33) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Record the volume.
 * 34) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Take the mass of the cylinder with the water in it. Record mass.
 * 35) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the measurements from #4 and #6, calculate the volume of the copper weight.
 * 36) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the measurements from #8 and #9, calculate the volume of the unopened Cherry Coke can.
 * 37) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the measurements from #11, #14, and # 31, calculate the volume of the unopened Diet Coke can.
 * 38) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the measurements from # 2 (Cherry Coke) or #3 (Diet) and #23, calculate the mass of just the carbon dioxide in both cans.
 * 39) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the measurements from #2/3 and #19, calculate the volume of just the carbon dioxide in both cans.
 * 40) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the measurements from #2 (Cherry) or #3 (Diet) and #22, calculate the mass of the total contents (CO₂ and liquid) of both the cans.
 * 41) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the calculations from #38 and #39, calculate the density of the carbon dioxide for both cans. Compare to see if there is a difference.
 * 42) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the calculation from #40 and the measurement from #29, calculate the density of the total contents of both cans.
 * 43) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the calculation from #36 (Cherry)/ #37 (Diet) and measurement from #2/3, calculate the density of both the unopened cans of Coke.
 * 44) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the calculations from #36 (Cherry)/ #37 (Diet) and the measurements from #21, find the density of the can itself for both.
 * 45) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Add the densities of the can (#44) and total contents (#42) together to find the total density of the Can of Coke for each can. Compare that to density of the unopened can (#43)
 * 46) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the measurements from #31 and #34, calculate the mass of the water.
 * 47) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Using the calculation from #46 and the measurement from #34, calculate the density of the water.
 * 48) <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; text-decoration: none; vertical-align: baseline;">Compare the density of the cans to the density of the water. If something is less dense than water, it will float on water; if something is denser than water, then it will sink.