Chapter 6, Problem 69E

Iron is found in Earth’s crust as several different iron compounds. Calculate the mass (in kg) of each compound that contains $1.0\times {10}^3\text{ kg}$ of iron.

(a) ${\text{Fe}}_{\text{2}}{\text{O}}_{\text{3}}$ (hematite)

(b) ${\text{Fe}}_3{\text{O}}_4$ (magnetite)

(c). ${\text{FeCO}}_3$ (siderite)