
Concept explainers
(a)
Interpretation:
The total kilocalories corresponding to each meal needs to be determined.
Concept Introduction:
- Energy value or nutritional value of food is the amount of energy stored in 1 gram of the food material. It is expressed in terms of kcal/g or kJ/g
- The energy value varies across the food spectrum.
(a)

Answer to Problem 3.47FU
Breakfast = 270 kcal
Lunch = 420 kcal
Dinner = 440 kcal
Explanation of Solution
Breakfast:
Food consumed and the corresponding energy value:
1 Banana = 110 kcal
1 cup non-fat milk = 90 kcal
1 egg = 70 kcal
Total energy = 110 + 90 + 70 = 270 kcal
Lunch:
Food consumed and the corresponding energy value:
1 cup carrots = 50 kcal
3 oz grounded beef = 220 kcal
1 medium apple = 60 kcal
1 cup non-fat milk = 90 kcal
Total energy = 50 + 220 + 60 + 90 = 420 kcal
Dinner:
Food consumed and the corresponding energy value:
3 oz skinless chicken = 110 kcal
1 baked potato = 100 kcal
3 oz broccoli = 30 kcal
1 cup non-fat milk = 90 kcal
Total energy = 2(110) + 100 + 30 + 90 = 440 kcal
(b)
Interpretation:
The total kilocalories corresponding to each day needs to be determined.
Concept Introduction:
- Energy value or nutritional value of food is the amount of energy stored in 1 gram of the food material. It is expressed in terms of kcal/g or kJ/g.
- The energy value varies across the food spectrum.
(b)

Answer to Problem 3.47FU
Total energy per day = 1130 kcal
Explanation of Solution
Total energy for breakfast = 270 kcal
Total energy for lunch = 420 kcal
Total energy for dinner = 440 kcal
Total energy per day = 270 + 420 + 440 = 1130 kcal
(c)
Interpretation:
Whether Person C loses or gains weight needs to be determined based on the new diet.
Concept Introduction:
- Energy value or nutritional value of food is the amount of energy stored in 1 gram of the food material. It is expressed in terms of kcal/g or kJ/g
- The energy value varies across the food spectrum.
(c)

Answer to Problem 3.47FU
Person C will lose weight.
Explanation of Solution
It is given that Person C consumes 1800 kcal per day.However,based on the new diet, he will consume only 1130 kcal per. Since the new diet has a lower total calorie intake, it is likely that Person C will lose weight over time.
(d)
Interpretation:
The number of days taken by Person C in order to lose 5.0 lbs needs to be determined.
Concept Introduction:
- Energy value or nutritional value of food is the amount of energy stored in 1 gram of the food material. It is expressed in terms of kcal/g or kJ/g
- The energy value varies across the food spectrum.
(d)

Answer to Problem 3.47FU
Days taken to lose 5.0 lbs = 26 days
Explanation of Solution
Energy lost per day = 1800 -1130 = 670 kcal
Want to see more full solutions like this?
Chapter 3 Solutions
Basic Chemistry (5th Edition)
- Calculate the pH and the pOH of each of the following solutions at 25 °C for which the substances ionize completely: (a) 0.000259 M HClO4arrow_forwardWhat is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10⁻⁴) and 0.200 mol of NaF to which 0.160 mol of NaOH were added?arrow_forwardDetermine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous solution. If neutral, simply write only NR. Be sure to include the proper phases for all species within the reaction. NaN₃arrow_forward
- A. Draw the structure of each of the following alcohols. Then draw and name the product you would expect to produce by the oxidation of each. a. 4-Methyl-2-heptanol b. 3,4-Dimethyl-1-pentanol c. 4-Ethyl-2-heptanol d. 5,7-Dichloro-3-heptanolarrow_forwardWhat is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10⁻⁴) and 0.200 mol of NaF to which 0.160 mol of NaOH were added?arrow_forwardCan I please get help with this.arrow_forward
- Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous solution. If neutral, simply write only NR. Be sure to include the proper phases for all species within the reaction. N₂H₅ClO₄arrow_forwardPlease help me with identifying these.arrow_forwardCan I please get help with this?arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY





