Question

Iron is the most widely used metal in North America. It may be produced by the reaction of iron (III) oxide, from iron ore, with carbon monoxide to produce iron metal and carbon dioxide. What mass of iron (III) oxide is required to produce 100.0 g of iron? Show your work

Answer 1

Fe₂O₃ + 3CO --> 2Fe + 3CO₂

Proportion: m(Fe2O3)/Mr(Fe2O3)=m(Fe)/2*Mr(Fe);

m(Fe2O3)=m(Fe)*Mr(Fe2O3)/2*Mr(Fe)=100*160/2*56=142.86 g;

Answer: 142.86 g