calculez moli Al care are masa atomica molara A,Al= 27g/mol
niu(n)= m/A
niu= 1,35g/27g/mol=0,05molAl
-ecuatia reactiei este
2mol.............................................3mol
2Al + 3 H2SO4----> Al2(SO4)3 +3H2
0,05mol..........................................n=0,05x3/2.H2.................calculeaza !!!!