General, Organic, and Biological Chemistry: Structures of Life (5th Edition)

Published by Pearson
ISBN 10: 0321967461
ISBN 13: 978-0-32196-746-6

Chapter 3 - Matter and Energy - 3.5 Energy and Nutrition - Questions and Problems - Page 79: 3.31

Answer

880 kilojoules and 210 e kilocalories.

Work Step by Step

To answer this question we must multiply the quantity in grams of carbohydrate, fat and protein by the respective values (Kcal/g and KJ/g) given by the table 3.7; after that, sum them to get the final result. For KJ : (16 g × 17 KJ/g) + (12 g × 38 KJ/g) + (9 g × 17 KJ/g) =881 KJ (round it off to 880 KJ) For Kcal : (17 g × 4 Kcal/g) + (12 g × 9 Kcal/g) + (9 g × 4 Kcal/g) = 212 Kcal (round it off to 210 Kcal)
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