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When 8.36 g of a salt dissolves in 142 mL of water (density = 1.00 g/mL) in a coffee-cup calorimeter, the temperature rises from 20.1°C to 23.6°C. Determine q for the solution process, assuming that Ccal = Cwater- Include the mass of salt in your calculation.

When 8.36 g of a salt dissolves in 142 mL of water (density = 1.00 g/mL) in a coffee-cup calorimeter, the temperature rises from 20.1°C to 23.6°C. Determine q for the solution process, assuming that Ccal = Cwater- Include the mass of salt in your calculation.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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When 1.350 g of benzoic acid (C7H,O2) burns completely in excess O2 gas at constant pressure and 298.0 K, it releases 35.61 kJ of energy. Your answer is correct. Write the balanced chemical equation for this reaction. Ignore aggregation states in your answer. 2C,H,0, + 150,+14CO, + 6H,0 eTextbook and Media X Incorrect. (a) What is the molar energy of combustion (in kJ/mol) of acetylene? i 3221.52 kJ/mol (b) How much energy (in kJ) is released per mole of O2 consumed? i 429.536 kJ
Transcribed Image Text:When 1.350 g of benzoic acid (C7H,O2) burns completely in excess O2 gas at constant pressure and 298.0 K, it releases 35.61 kJ of energy. Your answer is correct. Write the balanced chemical equation for this reaction. Ignore aggregation states in your answer. 2C,H,0, + 150,+14CO, + 6H,0 eTextbook and Media X Incorrect. (a) What is the molar energy of combustion (in kJ/mol) of acetylene? i 3221.52 kJ/mol (b) How much energy (in kJ) is released per mole of O2 consumed? i 429.536 kJ
When 8.36 g of a salt dissolves in 142 mL of water (density = 1.00 g/mL) in a coffee-cup calorimeter, the temperature rises from 20.1°C to 23.6°C. Determine q for the solution process, assuming that Ccal = Cwater- Include the mass of salt in your calculation.
Transcribed Image Text:When 8.36 g of a salt dissolves in 142 mL of water (density = 1.00 g/mL) in a coffee-cup calorimeter, the temperature rises from 20.1°C to 23.6°C. Determine q for the solution process, assuming that Ccal = Cwater- Include the mass of salt in your calculation.
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