Chapter 6, Problem 6N.2E

(a)

Interpretation Introduction

Interpretation:

The equilibrium constant for the given reaction has to be calculated.

    ${\text{2Fe}}^{3+}{\text{(aq) + H}}_2\text{(g)}\stackrel{}{\rightleftharpoons }{\text{2Fe}}^{\text{2+}}{\text{(aq) + 2H}}^{+}\text{(aq)}$

(b)

Interpretation Introduction

Interpretation:

The equilibrium constant for the given reaction has to be calculated.

    ${\text{2Cr(s) + O}}_{\text{2}}\text{(g)}{\text{+ 2H}}_{\text{2}}\text{O(l)}\stackrel{}{\rightleftharpoons }{\text{2Cr}}^{\text{2+}}{\text{(aq) + 4OH}}^{\text{-}}\text{(aq)}$