Quantitative Chemical Analysis
Quantitative Chemical Analysis
9th Edition
ISBN: 9781464135385
Author: Daniel C. Harris
Publisher: W. H. Freeman
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Chapter 9.5, Problem 5TY
Interpretation Introduction

Interpretation:

The pH of buffered solution tris(hydroxymethyl)-aminomethane and tris hydrochloride has to be calculated.

Concept introduction:

  • pH is the logarithm of the reciprocal of the concentration  of H3O+  in a solution.
  •   pH is used to determine the acidity or basicity of an aqueous solution.
  • pH=-log[H3O+]
  • pH=pKa+log[conjugate base][acid] is Henderson-Hasselbalch equation.
  • Buffer solution is defined as a solution that oppose changes in pH while adding little amount of either an acid or a base.
  • Buffer solution is a combination of a weak acid and its conjugate base or a weak base and its conjugate acid.

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