Basic Chemistry
6th Edition
ISBN: 9780134878119
Author: Timberlake, Karen C. , William
Publisher: Pearson,
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Question
Chapter 3.6, Problem 41PP
Interpretation Introduction
Interpretation: How many Kilocalories are produced in following should be calculated-
- Burning of a stalk of celery which gives 125 kJ when it is burned in calorimeter
- Burning of a waffle which gives 870 kJ when it is burned in calorimeter.
Concept Introduction:
- conversion factor is
Or,
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Chapter 3 Solutions
Basic Chemistry
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 - Classify each of the following as a pure substance...Ch. 3.1 - Classify each of the following as a pure substance...Ch. 3.1 - A dietitian includes one of the following mixtures...Ch. 3.1 - A dietitian includes one of the following mixtures...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 - Describe each of the following as a physical or...Ch. 3.2 - Describe each of the following as a physical or...
Ch. 3.2 - Prob. 11PPCh. 3.2 - Prob. 12PPCh. 3.2 - Prob. 13PPCh. 3.2 - Describe each of the following properties for the...Ch. 3.3 - Prob. 15PPCh. 3.3 - Prob. 16PPCh. 3.3 - Prob. 17PPCh. 3.3 - Calculate the unknown temperature in each of the...Ch. 3.3 - Prob. 19PPCh. 3.3 - Prob. 20PPCh. 3.4 - Prob. 21PPCh. 3.4 - Prob. 22PPCh. 3.4 - Prob. 23PPCh. 3.4 - Prob. 24PPCh. 3.4 - Prob. 25PPCh. 3.4 - Prob. 26PPCh. 3.4 - Prob. 27PPCh. 3.4 - Prob. 28PPCh. 3.5 - If the same amount of heat is supplied to samples...Ch. 3.5 - Substances A and B are the same mass and at the...Ch. 3.5 - Calculate the specific heat (J/g °C) for each of...Ch. 3.5 - Calculate the specific heat (J/g °C) for each of...Ch. 3.5 - Use the heat equation to calculate the energy, in...Ch. 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. 36PPCh. 3.5 - Prob. 37PPCh. 3.5 - Prob. 38PPCh. 3.5 - Prob. 39PPCh. 3.5 - a. A 22.8-g piece of metal at 92.6 °C is dropped...Ch. 3.6 - Prob. 41PPCh. 3.6 - Prob. 42PPCh. 3.6 - Prob. 43PPCh. 3.6 - Prob. 44PPCh. 3.6 - Prob. 45PPCh. 3.6 - Prob. 46PPCh. 3.6 - Prob. 47PPCh. 3.6 - Prob. 48PPCh. 3.6 - When a 1.50-g sample of walnuts is burned in a...Ch. 3.6 - Prob. 50PPCh. 3.6 - Prob. 51PPCh. 3.6 - Prob. 52PPCh. 3 - Prob. 53UTCCh. 3 - Prob. 54UTCCh. 3 - Prob. 55UTCCh. 3 - Classify each of the following as a homogeneous or...Ch. 3 - Prob. 57UTCCh. 3 - Prob. 58UTCCh. 3 - Prob. 59UTCCh. 3 - Prob. 60UTCCh. 3 - Prob. 61UTCCh. 3 - Prob. 62UTCCh. 3 - Prob. 63UTCCh. 3 - Prob. 64UTCCh. 3 - Prob. 65APPCh. 3 - Classify each of the following as an element, a...Ch. 3 - Classify each of the following mixtures as...Ch. 3 - Prob. 68APPCh. 3 - Prob. 69APPCh. 3 - Prob. 70APPCh. 3 - Prob. 71APPCh. 3 - Prob. 72APPCh. 3 - Prob. 73APPCh. 3 - Prob. 74APPCh. 3 - Prob. 75APPCh. 3 - Calculate each of the following temperatures in...Ch. 3 - Prob. 77APPCh. 3 - Prob. 78APPCh. 3 - Prob. 79APPCh. 3 - Prob. 80APPCh. 3 - A 0.50-g sample of vegetable oil is placed in a...Ch. 3 - A 1.3-g sample of rice is placed in a calorimeter....Ch. 3 - A hot-water bottle for a patient contains 725 g of...Ch. 3 - Prob. 84APPCh. 3 - Prob. 85APPCh. 3 - Prob. 86APPCh. 3 - The following problems are related to the topics...Ch. 3 - The following problems are related to the topics...Ch. 3 - The following problems are related to the topics...Ch. 3 - The following problems are related to the topics...Ch. 3 - Prob. 91CPCh. 3 - Prob. 92CPCh. 3 - Gold, one of the most sought-after metals in the...Ch. 3 - Prob. 2CICh. 3 - Prob. 3CICh. 3 - Prob. 4CICh. 3 - In one box of nails weighing 0.250 lb, there are...Ch. 3 - A hot tub is filled with 450 gal of water. (2.5,...
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Similar questions
- Calculate the kilocalories for each of the following: a. one cup of popcorn that produces 131 kJ when burned in a calorimeter.b. a sample of butter that produces 23.4 kJ when burned in a calorimeter.arrow_forwardNatural gas, or methane, is an important fuel. Combustion of one mole of methane releases 802.3 kilojoules of energy. How much energy does that represent in kilocalories? Select one: a. 3.36 x 10° kcal b. 1.92 x 10° kcal c. 1.92 x 10 kcal 3 d. 3.36 x 10 kcal e. 1.92 x 10¯ kcalarrow_forwardNatural gas, or methane, is an important fuel. Combustion of one mole of methane releases 802.3 kilojoules of energy. How much energy does that represent in kilocalories? Select one: a. 1.92 x 10-1 kcal b. 1.92 x 102 kcal c. 1.92 x 105 kcal d. 3.36 x 103 kcal e. 3.36 x 106 kcalarrow_forward
- A food contains 50 grams of carbohydrate and has a total 200 kilocalories. What is the percentage of calories from carbohydrates? a. 100% b. 75% c. 25% d. 50%arrow_forwardClassify each of the following chemical changes as exothermic or endothermic reaction. Chemical Change Exothermic or Endothermic a. A reaction absorbs 550 kJ. b. The energy level of the products is lower than that of the reactants. c. The metabolism of glucose in the body provides energy. d. The energy level of the products is higher than that of the reactants. e. In the body, the synthesis of proteins requires energy. 0.400 moles of sucrose, C12H22O11, contains _________________ C atoms. 12 b. 6.02 x 1023 c. 2.89 x 1024 d. 5.02 x 1022 e. 4.80 Three moles of copper(II) sulfate, CuSO4, contains __________________ moles of O. 4 b. 6.02 x 1023 c. 1.51 x 1023 d. 8 e. 12.04 x 1023 f. 12arrow_forwardUse the following balanced equation for problems 1–5. Molar masses are given below. 2 As + 3 H2 → 2 AsH3 + 150. kcal molar masses 74.92 g 2.02 g 77.95 g How much energy is released when 22.22 g of H2 are consumed ? A. 550. kcal B. 1650 kcal C. 3330 kcal D. 1110 kcalarrow_forward
- A person uses 750 kcal on a long walk. Calculate the energyused for the walk in each of the following energy units:a. joulesb. kilojoulesarrow_forwardA teaspoon of the carbohydrate sucrose (common sugar) contains 16 Calories (16 kcal). What is the mass of one teaspoon of sucrose if the average number of Calories for carbohydrates is 4.1 Calories/g? 3.90 g 0.256 g 65.6 garrow_forwardConvert each of the following energy units:a. 8.1 kcal to calb. 325 J to kJc. 2550 cal to kJd. 2.50 kcal to Jarrow_forward
- Ammonia (NH 3) decomposes to hydrogen and nitrogen and 22.0 kcal/mol of energy is absorbed. 2 NH3(g) 3H2(g) + N2(g) a. How much energy is absorbed when 1 mol of N 2 is formed? b. How much energy is absorbed when 1 mol of NH 3 reacts? c. How much energy is absorbed when 3.50 g of NH 3 reacts?arrow_forwardConvert the following numbers of calories or kilocalories into joules and kilojoules (Remember: kilo means 1000.) a. 75.2 kcal b. 75.2 cal c. 1.41 × 10³ cal d. 1.41 kcalarrow_forward10. If an In-N-Out Double-Double cheeseburger contains 6.70 × 10² kilocalories, how many calories are present? How many joules of energy are stored? Which unit is commonly used to measure energy stored in foods? Handbook 3 2020 Cuesta College. All rights reserved 16arrow_forward
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