Lab for Chemistry 221

Lab for Chemistry 221

Lab: How much sugar is in a Can of Coke?

Abstract: A 50mL (we used 100mL) volumetric flask was used to determine the amount of sugar in a can of Coke per mL in 5 different solutions. Using the calibration curve we determine the amount of sugar per mL in a can of coke. This experiment concluded that there is 43.83g of sugar in a 12oz can of Coke.

Introduction: This experiment was conducted to determine the amount of sugar in a can of Coke and to and use a calibration curve. 5 different solutions were made, each containing 100mL of water and between 1 and 7 grams of sugar. The calibration curve was used to determine the sugar in the can of Coke. The measurements used are grams and milliliters. The calibration curve is used to determine the grams of sugar just by using the density of the can of Coke. In this experiment the main equation was density = mass / volume.

Data:

Mass of empty flask and stopper (g)
Mass of flask and stopper with sugar (g)
Mass of flask and stopper with solution (g)
Mass of Sugar (g)
Mass of Solution (g)
Density of Solution (g/ml)
Dissolved sugar per mL solution (g/ml)
Pure H20
44.354g
--------------
143.833g
----------
99.479g
0.995g/ml
0.0g/ml
Flask 1
44.354g
45.053g
144.218g
1g
99.864g
0.999g/ml
0.01g/ml
Flask 2
44.354g
46.204g
144.390g
2g
100.036g
1.000g/ml
0.02g/ml
Flask 3
44.354g
47.686g
144.933g
3g
100.579g
1.006g/ml
0.03g/ml
Flask 4
44.354g
50.159g
145.781g
5g
101.427g
1.014g/ml
0.05g/ml
Flask 5
44.354g
51.860g
146.391g
7g
102.037g
1.020g/ml
0.07g/ml
Coke
44.354g
-------------
148.275g
------------
103.921g
1.040g/ml
0.1235g/ml

Results: See separate page.

Discussion: Overall the experiment successfully show that there is about 43.83g of sugar in a can of Coke using the calibration curve. The calibration curve is a general method for determining the concentration of a substance in an unknown sample by comparing the