Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter17: Principles Of Chemical Reactivity: Other Aspects Of Aqueous Equilibria
Section: Chapter Questions
Problem 27PS: Phenol, C6H5OH, is a weak organic acid. Suppose 0.515 g of the compound is dissolved in enough water...
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Question
When 32.3 mL of 0.100 M Ba(OH)2 is mixed with 197.2 mL of 0.200 M HCl, the reaction goes to completion. Calculate the pH of the solution.
Expert Solution

Introduction
The reaction result in the formation of Barium chloride. The pH of a solution is the negative logarithm of H+ ion concentration or 14 subtracted from the negative logarithm of OH+ ion concentration. So here the pH can be calculated either from the amount of HCl or Ba(OH)2 that remains after the reaction.
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