1 litre liqiud water = 55,56 mol
(M H2O = 18g/mol P H2O = 1000g / l
==> 1000g / 18g/mol = 55,56 mol)
H2 + 1/2 O2 = H2O ==> on 1 mol H2O we need 1 mol H2 and 0,5 mol O2
1mol(gas) = 22.4 l
==> we need 55,56mol*22,4 l H2
and 55,56 * 0,5 * 22,4 l O2
so we need ~ 1244 l H2 and 622 l O2
(Г)