Posted by Lynn on .
If I have a 1200 gram sample of a soft drink and it contains 180 grams of sugar, the percentage by mass of the sugar in the drink is 15%. If the sugar in the drink is sucrose (C12H22O11), how many grams of pure carbon can be obtained from decomposing all of the sugar in the soft drink?

Pre AP Chemistry 
Mitchelle,
76 grams
Find the formula mass of sucrose=342 grams
Part/whole*100 which is 144/342*100=42.1%
42.1% of 180 grams= 76 grams