One cup of clam chowder contains 9g of protein, 12 g of fat, and 16 g of carbohydrates. How many kilocalories are in the clam chowder. My book says the answer is 210 but I keep getting 208 kcal.

Here are the typical energy(caloric) values for the three food types.

Carbs 4 kcal/g

fat 9 kcal/g

protein 4 kcal/g

You are correct it is 208

To determine the number of kilocalories in clam chowder, we need to know the energy content of each macronutrient (protein, fat, and carbohydrates).

The energy content of protein is 4 kcal per gram, fat is 9 kcal per gram, and carbohydrates are 4 kcal per gram.

Let's calculate the energy contribution of each macronutrient:

Protein: 9g x 4 kcal/g = 36 kcal
Fat: 12g x 9 kcal/g = 108 kcal
Carbohydrates: 16g x 4 kcal/g = 64 kcal

Now, sum up the energy contributions:

36 kcal + 108 kcal + 64 kcal = 208 kcal

Therefore, based on the given values, the clam chowder contains approximately 208 kcal. It seems like there may be a discrepancy between the answer provided by your book and your calculations. Double-check your calculations or refer to another source for verification.

To calculate the number of kilocalories (kcal) in the clam chowder, you need to use the macronutrient values and their respective calorie content.

The general formula for calculating the number of kilocalories in a food item is as follows:

Calories = (Grams of Protein * 4) + (Grams of Fat * 9) + (Grams of Carbohydrates * 4)

Let's plug in the values for the clam chowder:

Protein: 9g
Fat: 12g
Carbohydrates: 16g

Using the formula, we get:

Calories = (9 * 4) + (12 * 9) + (16 * 4)
Calories = 36 + 108 + 64
Calories = 208 kcal

Based on the calculations, you are correct that the clam chowder contains 208 kilocalories.

It seems there might be an error in your book or a discrepancy between the values provided and the answer given. I would recommend reviewing the information again or consulting another reputable source to confirm the correct answer.