Chapter 11, Problem 123CP

a.

Interpretation Introduction

Interpretation: The equilibrium constant for the given reaction needs to be determined.

Concept Introduction:The formula relating the equilibrium constant, $K$ and standard reduction potential, ${\text{E}}_{\text{cell}}^{\text{o}}$ is:

  $\text{logK = }\frac{{\text{nE}}_{\text{cell}}^{\text{o}}}{0.0591}$

Where $\text{n}$ is number of electrons involved in the half-reactions.

b.

Interpretation Introduction

Interpretation: The concentration of nitric acid produced from ${\text{NO and NO}}_{\text{2}}$ mixture with only $\text{0}{\text{.20\% NO}}_{\text{2}}$ (by moles) needs to be calculated at ${\text{25 }}^{\text{o}}\text{C}$ and $\text{1}\text{.00 atm}$ .

Concept Introduction:The relationship between reactants and products of a reaction in equilibrium with respect to some unit is said to be equilibrium expression. It is the expression that gives ratio between products and reactants. The expression is:

  $\text{K = }\frac{\text{concentration of products}}{\text{concentration of reactants}}$