a) \(n_{H_2}=\dfrac{3,36}{22,4}=0,15\left(mol\right)\)
PTHH: 2Al + 3H2SO4 --> Al2(SO4)3 + 3H2
______0,1<----------------------0,05<----0,15______(mol)
=> \(m_{Al}=0,1.27=2,7\left(g\right)\)
b) \(m_{Al_2\left(SO_4\right)_3}=0,05.342=17,1\left(g\right)\)
