Gas laws: pressure, volume and temperature

(i) The first step is the catalytic oxidation of ammonia gas to nitrogen monoxide. $\ce{4NH3(g) + 5O2(g) -> 4NO(g) + 6H2O(g)}$ Determine the volume, in dm$^3$, of nitrogen monoxide produced from 20.0 g of ammonia, at STP, using section 2 of the data booklet.…

Calculate the volume, in $\mathrm{dm^3}$ at STP, of the gas produced. Use section 2 of the data booklet.

What volume of hydrogen, in $\mathrm{cm^3}$, is produced at STP when 0.810 g of aluminium reacts with an excess of hydrochloric acid? $\ce{2Al(s) + 6HCl(aq) -> 2AlCl3(aq) + 3H2(g)}$ Molar volume of an ideal gas at STP = 22.7 $\mathrm{dm^3\,mol^{-1}}$ A. 341 B.…