Question

The grams of carbohydrate in one apple if the apple has no fat and no protein and provides 72 kcal of energy. What ate the kilocalories or kJ?

Answer 1

the question is incomplete

Answer 2

Carbs 4 kcal/g 17 kJ/g
Fat 9 kcal/g 38 kJ/g
Protein 4 kcal/g 17 kJ/g

Using the energy values for foods (above) determine each of the following:
The grams of carbohydrate in one apple if the apple has no fat and no protein and provides 72 kcal of energy.

Answer 3

so you can use dimensional analysis,

you need a value in grams, and you have "kcal/g" and "kcal".

You need to cancel out "kcal" and have "g" at the top (numerator).

\(\dfrac{kcal}{kcal/g}=\dfrac{\cancel{kcal}}{\cancel{kcal}}*g=g\)

so divide the energy by the values given in the table.

Mass of apple =\(\dfrac{ 72 kcal}{ 4 kcal/g}=18~g\)

Answer 4

Thank you so much!