A Snickers bar contains 12 g fat,33 g carbohydrates,and 4.0 g protein.Assuming that the food value 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

The energy from fat is 12 g * 9.0 Cal/g = 108 Cal. The total energy is (12 g * 9.0 Cal/g) + (33 g * 4.0 Cal/g) + (4.0 g * 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,and 4