reacting volumes of gas

Question 1

1 mol of any gas at room temp + pressure

Answer 1

24dm3

Question 2

converting quantities between different substances using a balanced equation

Answer 2

step 1: use one of the 3 equations to convert any given quantity into amount in mol
step 2: use balanced equation to convert in mol of initial substance into amount in mol of second substance
step 3: convert amount, in mol, of second substance into quantity question asked for using relevant equation