Page 298 #5 How many molecules of nitrogen, N2(g) produce 10 molecules of ammonia, (NH3 (g)) in the following reaction? N2(g) + 3H2(g) → 2NH3(g) Page 300 #17 What amount in moles of oxygen reacts with 11.3 mole of propane gas (C3H8(g)) during the combustion of propane? Page 304 #27 Solid iron (III) oxide reacts with carbon monoxide to produce solid iron and carbon dioxide. What mass (in grams) of carbon dioxide is produced from 12.4 g of iron (III) oxide?