\(n_{Al}=\dfrac{4.5}{27}=\dfrac{1}{6}\left(mol\right)\)
\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(\dfrac{1}{6}.....0.5.......\dfrac{1}{6}.......0.25\)
\(m_{HCl}=0.5\cdot36.5=18.25\left(g\right)\)
\(m_{AlCl_3}=\dfrac{1}{6}\cdot133.5=22.25\left(g\right)\)
\(V_{H_2}=0.25\cdot22.4=5.6\left(l\right)\)
nAl=1/6(mol)
PTHH: 2 Al + 6 HCl -> 2 AlCl3 + 3 H2
1/6________1/2(mol)
Ủa đề cứ thiếu thiếu , bắt tính gì làm gì em?