Mg + 2 HCl ---> MgCl2 + H2
a) 1 mol Mg........2*36,5 g HCl
0,1 moli Mg...........x g HCl x = 7,3 g HCl
c%=md/ms * 100 => ms = 7,3/36,5 * 100 = 20 g
b) 1 mol Mg........1 mol H2.........2 g H2.........22,4 l H2
0,1 moli Mg..........x moli H2.........y g H2.........z l H2
x = 0,1 moli;y = 0.2 g;z=2,24 l
c)c%=V H2/V in cond normale * 100 = 2,24/22,4 * 100 = 10%
Nu sunt sigur ce vrea sa spuna acest subpunct.