Question

2Fe2O3 + 3C 4Fe + 300,

When 9.20 moles of carbon dioxide are produced from the reaction above, how many moles of Iron(III) Oxide must have been present before the reaction took place?

Answer 1

3.1 moles of Iron(III) Oxide

Step-by-step explanation:

The equation of the reduction of iron III oxide using carbon is shown;

Fe2O3 + 3CO → 2Fe + 3CO2

From the reaction equation;

1 mole of Iron(III) Oxide yielded 3 moles of carbon dioxide

x moles of Iron(III) Oxide will yield 9.20 moles of carbon dioxide

x = 9.2 moles * 1 mole/3 moles

x = 3.1 moles of Iron(III) Oxide