Coke
oke Lab Report S
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Name___________________________ Date_10/17/2020______
Provide a brief statement of the purpose of this activity and explain the idea behind a calibration
curve (this can be done before class and valuable insight can be gained by watching the
“weblets” (online prelab lectures available in the course content of D2L).
The purpose of this activity is to see how much sugar is in a can of coke by comparing
different solutions with known sugar amounts while using the calibration curve or graph.
This lab relates to a branch in chemistry called analytical chemistry which helps us by finding
out what is in substances and being able to quantify them.
The idea behind the calibration curve helps us to understand the relationship between
substances and their density, it can also be used to make comparisons.
Table 1: Mass data for various sugar water concentrations.
A B C =B-A =C-A =(B-A)/50mL =(C-A)/50mL
Mass of Mass of Mass of Mass of Mass of Dissolved Density of
Empty Flask Flask Sugar Solution sugar per Solution
Flask (g) With With (g) (g) mL solution (g/mL)
Sugar (g) Solution (g) (g/mL)
Pure H2O 35.949 n/a 85.987 35.949 50.038 0.0 1.00076
Flask 1 35.953 36.761 86.117 0.808 50.164 0.01616 1.00328
Flask 2 36.061 37.633 86.406 1.602 50.345 0.03204 1.00690
Flask 3 36.055 38.457 86.686 2.492 50.631 0.04984 1.01262
Flask 4 36.161 41.705 87.530 5.544 51.369 0.11088 1.02738
Flask 5 36.073 46.214 88.388 10.141 52.315 0.20282 1.04630
Mass of Clean Dry flask (g) 35.949
Mass of 50.0 mL of Coca-Cola 51.223
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