Chapter 9, Problem 9.10P

Interpretation Introduction

Interpretation:

The explanation has to done about the weak and strong nature of weak acid. The fraction of dissociation at given ${\text{K}}_{\text{a}}$ and F conditions has to be calculated along with the formal concentration

Concept Introduction:

Fraction of dissociation:

The fraction of acid that represents ${\text{A}}^{\text{-}}$ is called as fraction of dissociation. It is represented by the symbol $\text{α}$.

Generally, fraction of dissociation of weak acid is calculated as,

$\begin{array}{l}\text{α=}\frac{\left[{\text{A}}^{\text{-}}\right]}{\left[{\text{A}}^{\text{-}}\right]\text{+}\left[\text{HA}\right]}\\ \\ \text{α=}\frac{\text{x}}{\text{x+}\left(\text{F-x}\right)}\\ \\ \text{α=}\frac{\text{x}}{\text{F}}\end{array}$