Chemistry Problem

Question

Calculate the maximum number of Calories (kilocalories) in a 2000‑ and a 2500‑Cal diet that should be obtained from fat. The daily values (DV) for fat and carbohydrates and the reference daily intake (RDI) for protein are given in the table.

fat	< 65 g	< 80 g
carbohydrates	300 g	375 g
protein	50 g	50 g

Keep in mind that fat contains 9 Cal/g, carbohydrates contain 4 Cal/g, and protein contains 4 Cal/g. Express your answers to two significant figures.

The first column in 2000cal the second is 2500cal

Answer 1

To figure out the fat required to round out the diet: (I don't know what the point of the "<" if the other macros are given as fixed.

2000 cal - cal from carb - cal from protein = cal from fat

2000 - 50g(4cal/g P) - 300g(4cal/g Carb) = 600 cal from fat

This amounts to 600 cal/ 9 g/cal = 67 grams of fat.

Answer 2

2,000 Calorie diet:

65 g fat X (9 Cal/1g)= 585 Cal from fat

2500 Calorie diet:

80g fat X (9 Cal/1 g) = 720 Cal from fat