Chapter 9, Problem 9.134E

Interpretation Introduction

Interpretation:

The reason as to why the pH reading of the meter might not be $7$ at the equivalence point in a titration is to be stated. Whether the value of pH at the equivalence point would be greater or less than $7$ if hydrochloric acid were titrated with aqueous ammonia is to be stated.

Concept introduction:

pH of a solution is the value of negative logarithm of the concentration of hydrogen ions in a solution. An acidic solution has a pH below $7$, a basic solution has a pH more than $7$ and a neutral solution has a pH equal to $7$. The point in a titration where chemically equivalent quantities of the acid and the base have been mixed together is known as the equivalence point of the titration.