Chapter 21, Problem 67E

Interpretation Introduction

Interpretation: The oxidation state of iron in each ${\text{Fe}}_2{\text{O}}_{\text{3}}$ and ${\text{Fe}}_3{\text{O}}_{\text{4}}$ compound is to be calculated. The ratio of ${\text{Fe}}^{3+}$ to ${\text{Fe}}^{2+}$ ions in magnetite is to be calculated.

Concept introduction: Oxidation state is a number that is assigned to each element in a compound. This number describes the ability of the atom to loose or gain electrons.

To determine: The oxidation state of iron in each ${\text{Fe}}_2{\text{O}}_{\text{3}}$ and ${\text{Fe}}_3{\text{O}}_{\text{4}}$ compound; the ratio of ${\text{Fe}}^{3+}$ to ${\text{Fe}}^{2+}$ ions in magnetite; if the formula of magnetite $\text{FeO}\cdot {\text{Fe}}_{\text{2}}{\text{O}}_{\text{3}}$  makes any sense.