Using the table on the left, calculate the total kilocalories for carbohydrates (rounding off the kilocalories to the tens place).

Question

Express the energy to two significant figures and include the appropriate units
Carbohydrates(g)- 49,47,76

Answer 1

To calculate the total kilocalories for carbohydrates, we need to multiply the grams of carbohydrates by the energy content of carbohydrates, which is 4 kilocalories per gram.

Carbohydrates(g) - 49, 47, 76

Kilocalories = (49g * 4kcal/g) + (47g * 4kcal/g) + (76g * 4kcal/g)
= (196kcal) + (188kcal) + (304kcal)
= 688kcal

So, the total kilocalories for carbohydrates is 688 kcal.