Question

Iron rusts when exposed to oxygen. Iron(II) is produced in the reaction. How many moles of oxygen oxide will react with 2.4 mol of iron in the rusting reaction?

Answer 1

Iron has a rich redox chemistry..............

Explanation:

`Fe(s) + 1/2O_2 rarr FeO(s)`

This is a very simplified representation of the oxidation of iron metal. But if there are `2.4*mol` of iron metal, it should react with `1.2*mol` of dioxygen gas to give `2.4*mol` of iron oxide, as per the stoichiometric equation.

When rust occurs on a bridge or on a steel structure, it is a surface phenomenon.