a) 2Al+6HCl---.>2AlCl3+3H2
x-------------------------------1,5x
Zn+2HCl--->ZnCl2+H2
y-----------------------------y
n H2=5,6/22,4=0,25(mol)
Theo bài ra ta có hpt
\(\left\{{}\begin{matrix}27x+65y=9,2\\1,5x+y=0,25\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}x=0,1\\y=0,1\end{matrix}\right.\)
%m Al=0,1.27/9,2.100%=29,35%
%m Zn=100%-29,35=70,65%
b)m muối=0,1.133,5+0,1.136=26,95(g