Answer:
1.6 moles of iron
Explanation:
-Metals reacts with oxygen to form oxides.
-The chemical reaction between oxygen and iron is written as below:
[tex]4Fe_{(s)}+3O_2_{(g)}->2Fe_2O_3_{(s)}[/tex]
-pu notice from the balanced chemiocal equation above that the mole ration of iron to oxygen is 4:3
-We equate and cross multiply to find moles of iron in the reaction;
[tex]Fe:O_2=4:3\\\\\\\frac{Fe}{O_2}=\frac{4}{3}\\\\\frac{Fe}{1.2}=\frac{4}{3}\\\\Fe=\frac{4\times 1.2}{3}\\\\=1.6\ moles[/tex]
Hence, 1.6 moles of iron reacts with 1.2 moles of oxygen in the above reaction.
