2. Assume a gummy bear is all sugar, also known as sucrose (C12 H 22 O11 ). One gummy bear has a mass of 2.7g. How
many Calories are released by the combustion (or metabolism) of one gummy bear?
Molar Mass of C 12 H 22 O11 = 342 g/mol
1 Calorie = 1 kcal = 4.2 kJ
C 12 H 22 O11 + 35/2 O 2 (g) ----> 12 CO 2 (g) + 11 O2 (g) ∆H rxn = -5635 kJ