Chapter 14, Problem 3RQ

Interpretation Introduction

Interpretation: The information about solving the acid–base problem and problems involving reaction of strong acid and strong base is given. The substance that reacts with ${\text{H}}^{\text{+}}$ and the products formed on addition of strong acid to a buffer and; the substance that reacts with ${\text{OH}}^{-}$ and the products formed on addition of strong base to a buffer and the assumption that is made when a strong acid or strong base reacts to make it a stoichiometric problem is to be stated.

Concept introduction: The solution whose $\text{pH}$ does not change when a small quantity of an acid or a base is added to it is called a buffer solution. Their $\text{pH}$ is not changed when the acid or base is added to it.

To determine: The substance that reacts with ${\text{H}}^{\text{+}}$ and the products formed on addition of strong acid to a buffer and; the substance that reacts with ${\text{OH}}^{-}$ and the products formed on addition of strong base to a buffer and the assumption that is made when a strong acid or strong base reacts to make it a stoichiometric problem.