\(n_{Al}=\frac{m_{Al}}{M_{Al}}=\frac{10,8}{27}=0,4\left(mol\right)\)
\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(0,4\) \(1,2\) \(0,4\) \(0,6\) \(\left(mol\right)\)
a) \(V_{H_2}=n_{H_2}.22,4=0,6.22,4=13,44\left(l\right)\)
b) AlCl3 nha bn
\(m_{AlCl_3}=n_{AlCl_3}.M_{AlCl_3}=0,4.133,5=53,4\left(g\right)\)