2 Al + 6HCl --->2AlCl3 + 3H2
0,2------------------0,2------0,3
n Al=\(\dfrac{5,4}{27}\)=0,2 mol
=>VH2=0,3.22,4=6,72l
=>m AlCl3=0,2.133,5=26,7g
\(2Al+6HCl\rightarrow2AlCl_3+3H_2\\ n_{Al}=\dfrac{5,4}{27}=0,2\left(mol\right)\\ a,n_{H_2}=\dfrac{3}{2}.n_{Al}=\dfrac{3}{2}.0,2=0,3\left(mol\right)\\ \Rightarrow V_{H_2\left(đktc\right)}=0,3.22,4=6,72\left(l\right)\\ b,n_{AlCl_3}=n_{Al}=0,2\left(mol\right)\\ m_{AlCl_3}=133,5.0,2=26,7\left(g\right)\)
\(n_{Al}=\dfrac{5,4}{27}=0,2mol\)
\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
0,2 0,2 0,3
\(V_{H_2}=0,3\cdot22,4=6,72l\)
\(m_{AlCL_3}=0,2\cdot133,5=26,7g\)