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
Types
Food Type kcal/g
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 amount of carbohydrates, fats, and proteins in the bar. The given table provides the energy values for each food type in kcal/g:
Carbohydrate- 17 kcal/g
Fat- 38 kcal/g
Protein- 17 kcal/g
However, since we don't have the specific composition of the black cherry almond bar, we cannot calculate the total kilocalories.
To convert kilocalories to kilojoules, we need to multiply the kilocalories by 4.184, as 1 kilocalorie is equal to 4.184 kilojoules.
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. Without this information, we cannot provide an exact answer.
However, if we assume that the bar contains a certain amount of carbohydrates, fats, and proteins, we can calculate the total kilocalories using the energy values provided in the table.
Let's assume the bar contains:
- Carbohydrates: 25 grams
- Fats: 10 grams
- Proteins: 5 grams
First, we need to calculate the kilocalories for each component:
- Carbohydrates: 25 grams * 17 kcal/g = 425 kcal
- Fats: 10 grams * 38 kcal/g = 380 kcal
- Proteins: 5 grams * 17 kcal/g = 85 kcal
Next, we will add up the kilocalories for each component to find the total kilocalories:
Total kilocalories = Carbohydrates + Fats + Proteins
Total kilocalories = 425 kcal + 380 kcal + 85 kcal
Total kilocalories = 890 kcal
Therefore, the total kilocalories listed for the black cherry almond bar would be 890 Calories (rounded to the nearest tens place).
To convert kilocalories to kilojoules, we can use the conversion factor:
1 kilocalorie = 4.184 kilojoules
Therefore, the total kilojoules for the black cherry almond bar would be:
Total kilojoules = Total kilocalories * 4.184
Total kilojoules = 890 kcal * 4.184
Total kilojoules = 3716.36 kJ (rounded to the nearest tens place)
To calculate the total kilocalories (Calories) for a black cherry almond bar, we need to know the grams of carbohydrates, fats, and proteins present in the bar.
Since grams are not provided for each ingredient, we cannot calculate the exact total kilocalories. However, if we assume a standard distribution of macronutrients for a black cherry almond bar, we can estimate the total kilocalories based on the provided energy values.
Let's assume the percentages of carbohydrates, fats, and proteins in the black cherry almond bar are as follows:
- Carbohydrates: 40%
- Fats: 30%
- Proteins: 30%
Now, let's calculate the estimated kilocalories for each macronutrient:
- Carbohydrates:
Kilocalories from carbohydrates = (Grams of carbohydrates in the bar) x (kcal/g for carbohydrates)
Kilocalories from carbohydrates = (40% of the total weight of the bar) x (17 kcal/g for carbohydrates)
- Fats:
Kilocalories from fats = (Grams of fats in the bar) x (kcal/g for fats)
Kilocalories from fats = (30% of the total weight of the bar) x (38 kcal/g for fats)
- Proteins:
Kilocalories from proteins = (Grams of proteins in the bar) x (kcal/g for proteins)
Kilocalories from proteins = (30% of the total weight of the bar) x (17 kcal/g for proteins)
Finally, we add up the estimated kilocalories from each macronutrient to get the total kilocalories in the black cherry almond bar.
Since the weight of the bar and the exact distribution of macronutrients are not provided, we cannot provide a specific answer to the total kilocalories or kilojoules for the black cherry almond bar.