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

Question

Express the energy to two significant figures and include the appropriate units
Proteins(g)- 47,4,10
Carbohydrates(g) - 49,47,76
Fats(g)- 40,13,10

Answer 1

To calculate the total kilocalories for the meal, we need to multiply the grams of each macronutrient by its corresponding calorie value:

Proteins(g) - 47 g * 4 kcal/g = 188 kcal
Carbohydrates(g) - 49 g * 4 kcal/g = 196 kcal
Fats(g) - 40 g * 9 kcal/g = 360 kcal

Now, we can add up the kilocalories from each macronutrient to get the total:

Total kilocalories = 188 kcal + 196 kcal + 360 kcal = 744 kcal

Rounding off to the tens place, the total kilocalories for the meal is approximately 740 kcal.

So, the total kilocalories for the meal is 740 kcal.