Question

If a fresh golden delicious apple weighing 4.29oz. (120g ) contains 16.0g of fructose, what caloric content does the fructose contribute to the apple?

Answer 1

The heat of combustion of fructose, C6H12O6, is -2812 kJ/mol

Answer 2

Since we are only concerned with the caloric content of the apple, the mass of the entire apple is irrelevant. From the mass of fructose, we can use molar mass to convert to moles of fructose. We are given the energy per mole in the problem statement, so we can see how much energy is contained in the fructose. We will need to convert to cal from kJ. (The unit of calorie is typically expressed in kcal)

Answer 3

Let me know what you get.