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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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
Transcribed Image Text:A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to
175°C. Calculate the specific heat capacity of iron.
J/g °C
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- A chemist carefully measures the amount of heat needed to raise the temperature of a 203.0 g sample of a pure substance from -2.1 °C to 19.5 °C. The experiment shows that 609. J of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. 1 - 1 J.g¯¹.K x10 X Śarrow_forwardA 30.0g piece of copper absorbs 481.95 J of heat while rising from 23.0°C to 65.5 °C. Calculate the specific heat of copper.arrow_forwardA chemist carefully measures the amount of heat needed to raise the temperature of a 165.0 g sample of a pure substance from -8.5 °C to 15.1 °C. The experiment shows that 541. J of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. 1 J.g .K - 1 x10 X 3arrow_forward
- In an experiment, 26.5 g of metal was heated to 98.0°C and then quickly transferred to 150.0 g of water in a calorimeter. The initial temperature of the water was 22.5°C, and the final temperature after the addition of the metal was 32.5°C. Assume the calorimeter behaves ideally and does not absorb or release heat.arrow_forwardHow much heat must be added to a 38-g sample of aluminum to increase its temperature by 250.0°C? The specific heat capacity for aluminum is 0.902 J/g°C.arrow_forwardWhen a brass black was dropped into a 124-gram water, the water temperature increased from 21.0°C to 36.8°C. What is the heat capacity of the brass block? The initial temperature of the brass was 314.2°C and the specific heat of water is 4.184J/gk. If the mass of the brass block is 77.764g, what is the specific heat of the brass?arrow_forward
- 3. We all know that the hood of a car gets extremely hot in the summertime when a bright sun is shining on it. Suppose that a certain hood weighs 22.8 pounds and is composed of pure iron. If the specific heat of the iron is 0.450 J/g °C, what is the final temperature of the hood if it is heated from 20.0 °C by the addition of 4.0 x 102 kJ of sunlight? (Recall that 1 pound = 0.4536 kg)arrow_forwardA sample of copper absorbs 43.6 kJ of heat, resulting in a temperature rise of 75.0°C, determine the mass (in kg) of the copper sample if the specific heat capacity of copper is 0.385 J/g°C.arrow_forwardIf 601 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g.°C) that can be heated from 22.5°C to 120.0°C?arrow_forward
- When a sample of titanium was supplied 1.00 kJ of energy, the temperature rose 103.5 °C. If the specific heat of titanium is 0.523 J/g · °C, what is the mass of the titanium sample?arrow_forwardIn the laboratory a student finds that it takes 145 Joules to increase the temperature of 14.7 grams of solid silicon from 23.0 to 38.0 degrees Celsius. The specific heat of silicon calculated from her data is J/g°C.arrow_forward
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