Ta có:
\(n_{H2}=\frac{6,72}{22,4}=0,3\left(mol\right)\)
\(PTHH:2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(n_{AlCl3}=\frac{0,6}{3}=0,2\left(mol\right)\)
\(\Rightarrow m_{muoi}=0,2.133,5=26,7\left(g\right)\)
\(n_{HCl}=\frac{6.0,3}{3}=0,6\left(mol\right)\)
\(\Rightarrow V_{HCl}=\frac{0,6}{6}=0,1\left(l\right)\)