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28.00 mL of 0.4860 M phosphoric acid are reacted with 100.00 mL of 0.7820 M sodium hydroxide. The sodium hydroxide is in excess. Initially, both solutions are at room temperature, 24.019°C. After the reaction is complete, the temperature of the solution has increased to 33.162°C. What is the enthalpy of the reaction in kJ/mol acid? Assume the density of the solution is 1.00g/mL and the specific heat of the solution is the same as water (4.184 J/g-K).

28.00 mL of 0.4860 M phosphoric acid are reacted with 100.00 mL of 0.7820 M sodium hydroxide. The sodium hydroxide is in excess. Initially, both solutions are at room temperature, 24.019°C. After the reaction is complete, the temperature of the solution has increased to 33.162°C. What is the enthalpy of the reaction in kJ/mol acid? Assume the density of the solution is 1.00g/mL and the specific heat of the solution is the same as water (4.184 J/g-K).

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
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28.00 mL of 0.4860 M phosphoric acid are reacted with 100.00 mL of 0.7820 M sodium hydroxide. The sodium hydroxide is in excess. Initially, both solutions are at room temperature, 24.019°C. After the reaction is complete, the temperature of the solution has increased to 33.162°C. What is the enthalpy of the reaction in kJ/mol acid? Assume the density of the solution is 1.00g/mL and the specific heat of the solution is the same as water (4.184 J/g-K).
Transcribed Image Text:28.00 mL of 0.4860 M phosphoric acid are reacted with 100.00 mL of 0.7820 M sodium hydroxide. The sodium hydroxide is in excess. Initially, both solutions are at room temperature, 24.019°C. After the reaction is complete, the temperature of the solution has increased to 33.162°C. What is the enthalpy of the reaction in kJ/mol acid? Assume the density of the solution is 1.00g/mL and the specific heat of the solution is the same as water (4.184 J/g-K).
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