Basic Chemistry (5th Edition)
5th Edition
ISBN: 9780134138046
Author: Karen C. Timberlake
Publisher: PEARSON
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Chapter 3, Problem 3.87AQAP
If you want to lose 1 lb of “body fat,” which is 15% water, how many kilocalories do you need to expend?
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Chapter 3 Solutions
Basic Chemistry (5th Edition)
Ch. 3.1 - Classify each of the following as a pure substance...Ch. 3.1 - Classify each of the following as a pure substance...Ch. 3.1 - Classify each of the following pure substances as...Ch. 3.1 - Classify each of the following pure substances as...Ch. 3.1 - 3.5 Classify each of the following mixtures as...Ch. 3.1 - Classify each of the following mixtures as...Ch. 3.2 - Indicate whether each of the following describes a...Ch. 3.2 - Indicate whether each of the following describes a...Ch. 3.2 - Prob. 3.9QAPCh. 3.2 - Describe each of the following as a physical or...
Ch. 3.2 - Prob. 3.11QAPCh. 3.2 - What type of change, physical or chemical, takes...Ch. 3.2 - Prob. 3.13QAPCh. 3.2 - Describe each property of the element zirconium as...Ch. 3.3 - Prob. 3.15QAPCh. 3.3 - Prob. 3.16QAPCh. 3.3 - Prob. 3.17QAPCh. 3.3 - Prob. 3.18QAPCh. 3.3 - Prob. 3.19QAPCh. 3.3 - Prob. 3.20QAPCh. 3.4 - Discuss the changes in the potential and kinetic...Ch. 3.4 - Prob. 3.22QAPCh. 3.4 - Prob. 3.23QAPCh. 3.4 - Prob. 3.24QAPCh. 3.4 - Prob. 3.25QAPCh. 3.4 - Prob. 3.26QAPCh. 3.4 - Prob. 3.27QAPCh. 3.4 - Prob. 3.28QAPCh. 3.5 - If the same amount of heat is supplied to samples...Ch. 3.5 - Prob. 3.30QAPCh. 3.5 - Prob. 3.31QAPCh. 3.5 - Prob. 3.32QAPCh. 3.5 - Prob. 3.33QAPCh. 3.5 - Use the heat equation to calculate the energy, in...Ch. 3.5 - Calculate the mass, in grams, for each of the...Ch. 3.5 - Prob. 3.36QAPCh. 3.5 - Prob. 3.37QAPCh. 3.5 - Prob. 3.38QAPCh. 3.6 - Calculate the kilocalories for each of the...Ch. 3.6 - Prob. 3.40QAPCh. 3.6 - Using the energy values for foods (see Table 3.7),...Ch. 3.6 - Prob. 3.42QAPCh. 3.6 - Prob. 3.43QAPCh. 3.6 - Prob. 3.44QAPCh. 3.6 - Prob. 3.45QAPCh. 3.6 - Prob. 3.46QAPCh. 3 - Prob. 3.47FUCh. 3 - Prob. 3.48FUCh. 3 - Prob. 3.49UTCCh. 3 - Prob. 3.50UTCCh. 3 - Prob. 3.51UTCCh. 3 - Prob. 3.52UTCCh. 3 - Prob. 3.53UTCCh. 3 - Prob. 3.54UTCCh. 3 - Prob. 3.55UTCCh. 3 - Prob. 3.56UTCCh. 3 - Prob. 3.57UTCCh. 3 - Prob. 3.58UTCCh. 3 - Prob. 3.59UTCCh. 3 - Prob. 3.60UTCCh. 3 - Prob. 3.61AQAPCh. 3 - Prob. 3.62AQAPCh. 3 - Prob. 3.63AQAPCh. 3 - Prob. 3.64AQAPCh. 3 - Prob. 3.65AQAPCh. 3 - Prob. 3.66AQAPCh. 3 - Prob. 3.67AQAPCh. 3 - Prob. 3.68AQAPCh. 3 - Prob. 3.69AQAPCh. 3 - Prob. 3.70AQAPCh. 3 - Prob. 3.71AQAPCh. 3 - Prob. 3.72AQAPCh. 3 - Prob. 3.73AQAPCh. 3 - Prob. 3.74AQAPCh. 3 - 3.83 On a hot day, the bleach sand gets hot but...Ch. 3 - Prob. 3.76AQAPCh. 3 - Prob. 3.77AQAPCh. 3 - Prob. 3.78AQAPCh. 3 - Prob. 3.79AQAPCh. 3 - Prob. 3.80AQAPCh. 3 - Prob. 3.81AQAPCh. 3 - Use the heat equation to calculate the energy, in...Ch. 3 - Prob. 3.83AQAPCh. 3 - Prob. 3.84AQAPCh. 3 - Prob. 3.85AQAPCh. 3 - Prob. 3.86AQAPCh. 3 - If you want to lose 1 lb of “body fat,” which is...Ch. 3 - Prob. 3.88AQAPCh. 3 - Prob. 3.89AQAPCh. 3 - Prob. 3.90AQAPCh. 3 - Prob. 3.91CQCh. 3 - Prob. 3.92CQCh. 3 - Prob. 3.93CQCh. 3 - Prob. 3.94CQCh. 3 - Prob. 3.95CQCh. 3 - Prob. 3.96CQCh. 3 - Prob. 3.97CQCh. 3 - Prob. 3.98CQCh. 3 - Prob. 1CICh. 3 - Prob. 2CICh. 3 - Prob. 3CICh. 3 - Prob. 4CICh. 3 - Prob. 5CICh. 3 - Prob. 6CI
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- One way to lose weight is to exercise! Walking briskly at 4.0 miles per hour for an hour consumes about 400 kcal of energy. How many hours would you have to walk at 4.0 miles per hour to lose one pound of body fat? One gram of body fat is equivalent to 7.7 kcal of energy. There are 454 g in 1 lb.arrow_forward(a) If you eat a hot dog, it will provide 160 Calories of energy. Express this energy in joules. (b) The packet of nonsugar sweetener in Figure 4.3 provides 16 kJ of nutritional energy. Express this energy in kilocalories.arrow_forwardLet’s assume that a gallon of gasoline contains pure octane (C 8H 18) and has a density of 0.700 g/mL. When octane is burned, it releases 1,303 kcal/mol of energy. How many kilocalories of energy are released from burning one gallon of gasoline?arrow_forward
- Walking at a brisk pace burns off about 280 Cal/h. How long would you have to walk to burn off the Calories obtained from eating a cheeseburger that contained 32 g of protein, 29 g of fat, and 34 g of carbohydrates?arrow_forwardA 0.37 g Cheeto is burned and the heat produced is used to heat 50 grams of water from 22.1 degrees * C to 34.4 degrees * O . What is the energy value of the Cheeto in kcal / g ?arrow_forwardA 2 gram peanut is burned to heat water. The peanut has 6.5 kcal/gram. The water heats from 15C to 80C and the calorimeter is 57% efficient. What is the mass of water heated?arrow_forward
- If calorie raises the temperature of 1ml of water by 1ºC, how many calories are needed to raise the temperature of 50 ml of water by 1ºC?arrow_forwardA runner burns 2.46×10^3 kJ during a five-mile run. How many nutritional Calories did the runner burnarrow_forwardHow many calories are needed to raise 500 grams of water from 25 degrees Celsius to 40 degrees Celsius?arrow_forward
- A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping, the average adult burns or expends about 0.45 Cal/h for every pound of body weight. How many Calories would a 134 lb person burn during 6 hours of sleep? (Note that 1 Cal = 1 kcal.)arrow_forwardHow many kilocalories does a runner expend when he runs for 3.0 h and uses 620 Cal/h? How many pieces of pizza that each contain 13 g of protein, 15 g of fat, and 33 g of carbohydrates could be eaten after the race to replenish these Calories? (Do not round the total number of kcal to the appropriate signifcant figures when you report your answer. Round to the nearest whole slice of pizza.) [Hint: One gram of protein or one gram of carbohydrate typically releases about 4 Cal/g, while fat releases 9 Cal/g.] The runner expends kcal and can eat pieces of pizza.arrow_forwardOne hour of bicycle riding can require 500-900 kcal of energy, depending on the speed, the terrain, and the weight of the racer. An individual wants to lose weight by riding at a modest effort, consuming 505 kcal of energy per hour. How many hours must he ride to lose 21.0 pounds of body fat? One gram of body fat is equivalent to 7.70 kcal of energy. There are 454 g in 1 lb.arrow_forward
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