Concept explainers
Using the energy values for foods (see TABLE3.7), determine each of the following (round off the answer for each food type to the tens place):
a. the total kilojoules for one Cup Of orange juice that contains 26 g of carbohydrate, no fat, and 2 g ofprotein
b. the grams of carbohydrate in one apple if the apple has no fat and no protein and provides 72 kcal of energy
c. the kilocalories in one tablespoon of vegetable oil, which contains 14 g of fat and no carbohydrate or protein
d. the grams of fat in one avocado that has 405 kcal, 13 g of carbohydrate, and 5 g of protein
TABLE 3.7 Typical Energy Values for the Three Food Types
Food Type | kcal/g | kJ/g |
Carbohydrate | 4 | 17 |
Fat | 9 | 38 |
Protein | 4 | 17 |
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
Chemistry: An Introduction to General, Organic, and Biological Chemistry, Books a la Carte Edition & Modified MasteringChemistry with Pearson eText -- ValuePack Access Card Package
- For dinner, Charles had one cup of clam chowder, which contains 21 g of carbohydrate, 12 g of fat, and 3 g of protein. Use the table given below for the typical energy values of given food types. Typical Energy Values for the Three Food Types Food Type kcal/g kJ/g Carbohydrate 4 17 Fat 9 38 Protein 4 17 Part A How much energy, in kilocalories, is in the clam chowder? (Round off the kilocalories to the tens place.) Express your answer to two significant figures and include the appropriate units. Part B How much energy, in kilojoules, is in the clam chowder? (Round off the kilojoules to the tens place.) Express your answer to two significant figures and include the appropriate units.arrow_forwardA Big Mac hamburger from McDonald’s contains 540 Calories. (a) How many kilojoules does a Big Mac contain?(b) For how many hours could the amount of energy in a Big Mac light a 100-watt light bulb? (1 watt = 1 J/s)arrow_forwardA serving of fish contains 60 g protein and 18 g of fat. If protein has a caloric value of 4 kcal/g and fat has 9 kcal/g, how many kcal are in the serving? Give the answer to 3 significant figuresarrow_forward
- The label of a black cherry almond energy bar with a mass of 68 g lists the nutrition facts as 39 g of carbohydrate, 5 g of fat, and 10. g of protein.arrow_forwardI am having an issue with a problem and can't fidure it out. Using the table on the left, calculate the total kilocalories for carbohydrates (rounding off the kilocalories to the tens place). Express the energy to two significant figures and include the appropriate units. A 70.0-kgkg person had a quarter-pound cheeseburger, french fries, and a chocolate shake. Item Carbohydrate (g)(g) Fat (g)(g) Protein (g)(g) Cheeseburger 45 40. 47 French fries 47 18 4 Chocolate shake 76 10. 10.arrow_forwardA reaction releases 421 kJ of energy. How many kilocalories does this correspond to?arrow_forward
- An adult eats food whose nutritional energy totals approximately 2100 CalCal per day. The adult burns 1800 CalCal per day. How much excess nutritional energy, in kilojoules, does the adult consume per day?arrow_forwardThe Nutrition Facts on a 12-pack of Dr. Pepper specify that a single serving is one can and that a single serving contains 80 Calories. How many kilojoules of energy are contained in two-thirds of the entire 12-pack?arrow_forwardDetermine the total kilojoules in two tablespoons of crunchy peanut butter that contains 2 gg of carbohydrate, 17 gg of fat, and 9 gg of protein. Express your answer to two significant figures and include the appropriate units. Answer the following questions using the energy values for foods in the table. Do not round off any of your calculations until the answer is achieved. Round off the answers in kilocalories or kilojoules to the tens place. Food type kcal/g kJ/g Carbohydrate 4 17 Fat 9 38 Protein 4 17arrow_forward
- An adult eats food whose nutritional energy totals approximately 2100 CalCal per day. The adult burns 1800 CalCal per day. How much excess nutritional energy, in kilojoules, does the adult consume per day? Express your answer using one significant figure.arrow_forwarda 0.2500g sample of a pretzel is burned . The heat it gives off is used to heat 50.00g of water from 18.0 degrees Celcius to 42 degrees C. What is the caloric value of the pretzel in kcal/g?arrow_forwardA 0.2500g sample of a pretzel is burned. The heat it gives off is used to heat 50.00g of water from 10.0 C to 42.0 C. What is the caloric value of the pretzel in kcal/g?arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning