Gọi nAl = nZn = a (mol)
\(n_{H_2}=\dfrac{13,44}{22,4}=0,6\left(mol\right)\)
PTHH: 2Al + 6HCl --> 2AlCl3 + 3H2
a---------------------->1,5a
Zn + 2HCl --> ZnCl2 + H2
a--------------------->a
=> 1,5a + a = 0,6
=> a = 0,24 (mol)
=> mhh = 0,24.27 + 0,24.65 = 22,08 (g)
Gọi \(n_{Al}=n_{Zn}=a\left(mol\right)\)
PTHH:
2Al + 6HCl ---> 2AlCl3 + 3H2
a a
Zn + 2HCl ---> ZnCl2 + H2
a a
\(\rightarrow22,4\left(a+a\right)=13,44\\ \Leftrightarrow a=0,3\left(mol\right)\\ \rightarrow\left\{{}\begin{matrix}m_{Al}=0,3.27=8,1\left(g\right)\\m_{Zn}=0,3.65=19,5\left(g\right)\end{matrix}\right.\\ \rightarrow m_{hh}=8,1+19,5=27,6\left(g\right)\)