Chapter 8, Problem 8.10P

(a)

Interpretation Introduction

Interpretation:

The ${\text{K}}_{\text{a}}$ reaction for trichloroacetic acid, for anilinium ion, and copper ion has to be calculated.

Concept Introduction:

Acid dissociation constant ${\text{K}}_{\text{a}}$: The dissociation of weak acid is given by

    $\begin{array}{l}\text{HA}\rightleftharpoons {\text{H}}^{\text{+}}\text{+}{\text{A}}^{\text{-}}{\text{(K}}_{\text{a}}\text{reaction)}\\ {\text{K}}_{\text{a}}\text{=}\frac{{\text{[H}}^{\text{+}}{\text{][A}}^{\text{-}}\text{]}}{\text{[HA]}}\\ {\text{K}}_{\text{a}}\text{is}\text{equilibrium}\text{constant}\text{called}\text{Acid}\text{dissociation}\text{constant}\end{array}$

(b)

Interpretation Introduction

Interpretation:

Among trichloroacetic acid, anilinium ion, and copper ion the strongest acid has to be identified.