Chapter 15, Problem 15.12QE

Interpretation Introduction

Interpretation:

The term analytical concentration with an example for ${\text{HNO}}_{\text{3}}$ and ${\text{CH}}_{\text{3}}\text{COOH}$ solutions has to be defined.

Concept Introduction:

A weak acid in water produces a hydrogen ion and conjugate base. When weak acid dissolves in water, some acid molecules transfer proton to water.

In solution of weak acid, the actual concentration of the acid molecules becomes less because partial acid has lost protons to form hydrogen ions and dissociation occurs.

The reaction is as follows:

  $\text{HA}\left(\text{aq}\right)+{\text{H}}_{\text{2}}\text{O}\left(\text{l}\right)\to {\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\left(\text{aq}\right)+{\text{A}}^{-}\left(\text{aq}\right)$