NEED HELP ASAP

1) If a reaction is expected to produce .75 moles of gas, how many liters of gas would that be? (no more than 3 sig figs in answer)

2) A reaction produces 3 liters of hydrogen gas. How many moles of hydrogen molecules is this?

3) Calculate the number of moles of Al₂O₃ that are produced when 0.58 mol of Al reacts with 0.58 mol of FeO in the following reaction: 2Al(s) + 3FeO(s) -> 3Fe(s) + Al₂O₃(s) (Answer has 2 significant figures)

4) Calculate the number of grams of Fe that are produced when 57 grams of FeO is reacted with excess aluminum in the following reaction: 2Al(s) + 3FeO(s) -> 3Fe(s) + Al₂O₃(s) (Answer has 2 significant figures)