When 5.0 g of potassium hydroxide (molar mass = 56.1 g/mol) dissolves in 100.0 g of water, the temperature of the solution increases by 11.6°C. Calculate the AHsoln for potassium hydroxide. Assume the specific heat capacity of the solution is 4.2 J/g.°C. Select one: Oa. +26 kJ/mol O b. -75 kJ/mol C. +57 kJ/mol d. -26 kJ/mol e. -57 kJ/mol

When 5.0 g of potassium hydroxide (molar mass = 56.1 g/mol) dissolves in 100.0 g of water, the temperature of the solution increases by 11.6°C. Calculate the AHsoln for potassium hydroxide. Assume the specific heat capacity of the solution is 4.2 J/g.°C. Select one: Oa. +26 kJ/mol O b. -75 kJ/mol C. +57 kJ/mol d. -26 kJ/mol e. -57 kJ/mol

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

Chapter6: Thermochemistry

Section: Chapter Questions

Problem 127CWP: In a coffee-cup calorimeter, 150.0 mL of 0.50 M HCI is added to 50.0 mL of 1.00 M NaOH to make 200.0...

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