\(n_{Al}=\dfrac{m_{Al}}{M_{Al}}=\dfrac{5,4}{27}=0,2mol\)
\(n_{HCl}=\dfrac{m_{HCl}}{M_{HCl}}=\dfrac{29,2}{36,5}=0,8mol\)
\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
0,2 < 0,8 ( mol )
0,2 0,6 0,3 ( mol )
Chất còn dư là HCl
\(m_{HCl\left(du\right)}=n_{HCl\left(du\right)}.M_{HCl\left(du\right)}=\left(0,8-0,6\right).36,5=7,3g\)
\(V_{H_2}=n_{H_2}.22,4=0,3.22,4=6,72l\)