Final answer:
The calorie content of food can be determined using bomb calorimetry. To calculate the total energy, you would multiply the amount of protein, carbohydrates, and fat in the food by their respective calorie values per gram.
Step-by-step explanation:
The calorie content of food can be determined using bomb calorimetry, a process in which the food is burned and the energy it contains is measured. To calculate the total energy, you would multiply the amount of protein, carbohydrates, and fat in the food by their respective calorie values per gram. For example, if a snack contained 5g of protein, 31g of carbohydrates, and 12g of fat, you would calculate the total energy as follows: (5g protein x 4 Calories/g) + (31g carb x 4 Calories/g) + (12g fat x 9 Calories/g) = 252 Calories.