
Interpretation:
The percentage of total calories obtained from fat is to be calculated.
Concept Introduction:
Fats and oils are composed of organic molecules called triglycerides. Triglycerides are the main sources of fats in the body.
Polyhydroxy
Fiber is the carbohydrate that contains more than two molecules or units of glucose linked by
The

Answer to Problem 61E
Solution:
a)
b)
c)
Explanation of Solution
a) In Little Debbie choco-cakes,
Fats have a high calorific value, that is, up to
The number of calories in each product can be calculated as follows:
Thus, the total number of calories obtained is
The percentage of fatscan be calculated as follows:
Substitute
Therefore, the percentage of calories obtained from fats is
b) In aSnickers bar,
The number of calories in each product can be calculated as follows:
The percentage of fats can be calculated as follows:
Substitute
Therefore, the percentage of calories obtained from fats is
c) In Jerseymaid peach yoghurt,
The number of calories in each product can be calculated asfp;; pws:
Thus, the total number of calories obtained is
The percentage of fats can be calculated as follows:
Substitute
Therefore, the percentage of calories obtained from fats is
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Chapter 18 Solutions
Chemistry In Focus
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