Using the energy values for carbohydrates, fats, and proteins (see table below), what are the total kilocalories (Calories) listed for a black cherry almond bar? (Round off answers for each food type to the tens place.)
TABLE 3.7 Typical Energy
Values for the Three Food
Carbohydrate- 17
Fat-38
Protein-17
What are the total kilojoules
Express your answer with the appropriate units
To calculate the total kilocalories (Calories) listed for a black cherry almond bar, we need to know the energy values and quantities of carbohydrates, fats, and proteins in the bar.
Let's assume the black cherry almond bar contains 10 grams of carbohydrates, 5 grams of fats, and 3 grams of proteins.
The total kilocalories for each component can be calculated as follows:
- Carbohydrates: 10 grams * 17 kcal/g = 170 kcal
- Fats: 5 grams * 38 kcal/g = 190 kcal
- Proteins: 3 grams * 17 kcal/g = 51 kcal
To find the total kilocalories for the black cherry almond bar, we need to add up the kilocalories from carbohydrates, fats, and proteins:
Total kilocalories = 170 kcal (carbohydrates) + 190 kcal (fats) + 51 kcal (proteins)
Total kilocalories = 411 kcal
Therefore, the total kilocalories listed for the black cherry almond bar is 411 kcal.
To calculate the total kilojoules, we need to convert the kilocalories to kilojoules.
1 kilocalorie (kcal) = 4.184 kilojoules (kJ)
Total kilojoules = 411 kcal * 4.184 kJ/kcal
Total kilojoules ≈ 1,718 kJ
Therefore, the total kilojoules listed for the black cherry almond bar is approximately 1,718 kJ.
To calculate the total kilocalories (Calories) listed for a black cherry almond bar, we need to know the amounts of carbohydrates, fats, and proteins in the bar. However, the given information only provides the energy values for each nutrient (carbohydrate, fat, and protein).
To find the total kilocalories, we need additional information about the specific amounts of each nutrient in the black cherry almond bar.
To find the total kilocalories (Calories) listed for a black cherry almond bar, we need to know the energy values for carbohydrates, fats, and proteins and calculate the sum.
According to the provided table:
- Carbohydrates provide 17 kilocalories per gram.
- Fats provide 38 kilocalories per gram.
- Proteins provide 17 kilocalories per gram.
Now, we will need to know the amount of each nutrient present in the black cherry almond bar. Let's assume the bar contains:
- 20 grams of carbohydrates
- 10 grams of fats
- 5 grams of proteins
To calculate the total kilocalories for each nutrient, we multiply the grams of each nutrient by its respective energy value:
Carbohydrates: 20 grams * 17 kilocalories/gram = 340 kilocalories
Fats: 10 grams * 38 kilocalories/gram = 380 kilocalories
Proteins: 5 grams * 17 kilocalories/gram = 85 kilocalories
Now, we can find the total kilocalories by summing up the kilocalories from each nutrient:
Total kilocalories = 340 kilocalories + 380 kilocalories + 85 kilocalories = 805 kilocalories
Therefore, the black cherry almond bar contains 805 kilocalories.