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A sample of aluminum metal absorbs 9.86 J of heat, and the temperature of the sample increases from 23.2°C to 30.5°C. Given that the specific heat capacity of aluminum is 0.90 the mass of the 7. sample is: A 72 g B 65 g C 8.1 g D 1.5 g

A sample of aluminum metal absorbs 9.86 J of heat, and the temperature of the sample increases from 23.2°C to 30.5°C. Given that the specific heat capacity of aluminum is 0.90 the mass of the 7. sample is: A 72 g B 65 g C 8.1 g D 1.5 g

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter9: Energy And Chemistry
Section: Chapter Questions
Problem 9.50PAE: 9.50 When a 13.0-g sample of NaOH(s) dissolves in 400.0 mL of water in a coffee cup calorimeter, the...
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10 C The matter, or solution, has a positive AT while the process of dissolving has a positive AH. D The matter, or solution, has a negative AT while the process of dissolving has a positive AH. A sample of aluminum metal absorbs 9.86 J of heat, and the temperature of the sample increases from 23.2°C to 30.5°C. Given that the specific heat capacity of aluminum is 0.90 the mass of the 7. sample is: A 72 g B 65 g C 8.1 g D 1.5g 8. Calculate the heat (kJ) absorbed from the surroundings when 23.0 g of HCl are reacted. CHCI3 (1) + 3 HCI (g) → CH4 (g) + 3 Cl2 (g) AH = 336 k)/mol rxn A 177 kJ B 70.7 KJ C 212 kJ 口
Transcribed Image Text:10 C The matter, or solution, has a positive AT while the process of dissolving has a positive AH. D The matter, or solution, has a negative AT while the process of dissolving has a positive AH. A sample of aluminum metal absorbs 9.86 J of heat, and the temperature of the sample increases from 23.2°C to 30.5°C. Given that the specific heat capacity of aluminum is 0.90 the mass of the 7. sample is: A 72 g B 65 g C 8.1 g D 1.5g 8. Calculate the heat (kJ) absorbed from the surroundings when 23.0 g of HCl are reacted. CHCI3 (1) + 3 HCI (g) → CH4 (g) + 3 Cl2 (g) AH = 336 k)/mol rxn A 177 kJ B 70.7 KJ C 212 kJ 口
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