7. Given the following reaction: HNO3 (aq) + KOH (aq) → KNO3 (aq) + H₂O (1) A student placed 55.0 mL of 1.3 M HNO3 in a coffee cup calorimeter and noted the solution temperature at 23.5°C. To this 55.0 mL of 1.3 M KOH, at 23.5°C, was added. The reaction was stirred quickly and the temperature rose to 31.8°C. a) Calculate the heat of the reaction in J. Assume the specific heat capacities and densities of all solutions are the same as water. b) Calculate the heat of reaction per mol of acid in kJ/mol.
7. Given the following reaction: HNO3 (aq) + KOH (aq) → KNO3 (aq) + H₂O (1) A student placed 55.0 mL of 1.3 M HNO3 in a coffee cup calorimeter and noted the solution temperature at 23.5°C. To this 55.0 mL of 1.3 M KOH, at 23.5°C, was added. The reaction was stirred quickly and the temperature rose to 31.8°C. a) Calculate the heat of the reaction in J. Assume the specific heat capacities and densities of all solutions are the same as water. b) Calculate the heat of reaction per mol of acid in kJ/mol.
General Chemistry - Standalone book (MindTap Course List)
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Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.132QP
Related questions
Question
Transcribed Image Text:7. Given the following reaction:
HNO3 (aq) + KOH (aq)
→ KNO3
(aq)
+ H₂O (1)
A student placed 55.0 mL of 1.3 M HNO3 in a coffee cup calorimeter and noted the solution temperature at 23.5°C.
To this 55.0 mL of 1.3 M KOH, at 23.5°C, was added. The reaction was stirred quickly and the temperature rose to
31.8°C.
a) Calculate the heat of the reaction in J. Assume the specific heat capacities and densities of all solutions are the
same as water.
b) Calculate the heat of reaction per mol of acid in kJ/mol.
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