\(n_{Al}=\dfrac{27}{27}=1\left(mol\right)\\ pthh:2Al+6HCl\rightarrow2AlCl_3+3H_2\)
1 3 1,5
\(V_{H_2}=1,5.22,4=33,6\left(l\right)\\
C_{M\left(HCl\right)}=\dfrac{3}{0,3}=10M\)
\(pthh:Fe_2O_3+3H_2\underrightarrow{t^o}2Fe+3H_2O\)
1,5 1
\(m_{Fe}=1.56=56g\)
\(n_{Zn}=\dfrac{26}{65}=0,4\left(mol\right)\\
pthh:Zn+2HCl\rightarrow ZnCl_2+H_2\)
\(LTL:\dfrac{0,4}{1}>\dfrac{0,5}{2}\)
→Zn dư
\(n_{Zn\left(p\text{ư}\right)}=\dfrac{1}{2}n_{HCl}=0,25\left(mol\right)\\
m_{Zn\left(d\right)}=\left(0,4-0,25\right).65=9,75g\)