A Snickers bar contains 12 g fat, 33 g carbohydrates, and 4.0 g protein.Assuming that the food values of fat, carbohydrates, and protein are 9.0 Cal/g, 4.0 Cal/g, and 4.0 Cal/g, calculate the percentage of the energy that comes from fat.(1 Cal = 4.184 kJ)

Question

Quizplus · Accepted Answer

First, calculate the energy from fat: 12 g fat * 9.0 Cal/g = 108 Cal. Then, calculate the total energy: (12 g fat * 9.0 Cal/g) + (33 g carbohydrates * 4.0 Cal/g) + (4.0 g protein * 4.0 Cal/g) = 108 Cal + 132 Cal + 16 Cal = 256 Cal. The percentage of energy from fat is (108 Cal / 256 Cal) * 100% = 42%.

A Snickers Bar Contains 12 G Fat, 33 G Carbohydrates