Chapter 14, Problem 117E

Interpretation Introduction

Interpretation: The existence of an acid as weak or strong is to be determined on the basis of the given molecular view of an acid solution.

Concept Introduction: A strong acid dissociates completely into ${\text{H}}^{\text{+}}$ or ${\text{H}}_{\text{3}}{\text{O}}^{\text{+}}$ and ${\text{A}}^{-}$ ions when the dissociation is given by the equation as:

$\text{HA}\rightleftarrows {\text{H}}^{\text{+}}+{\text{A}}^{\text{-}}$

A weak acid dissociates partially into ${\text{H}}^{\text{+}}$, ${\text{A}}^{\text{-}}$ ions and some undissociated $\text{HA}$ molecules.

Strong acid is defined as an acid which is completely ionized.

Weak acid is defined as an acid which is partially ionized.