\(\left\{{}\begin{matrix}Al\\Zn\end{matrix}\right.+HCl\rightarrow\left\{{}\begin{matrix}AlCl_3\\ZnCl_2\end{matrix}\right.+H_2\)
Bảo toàn nguyên tố H:
\(n_{HCl}=2n_{H_2}=2.\dfrac{6,72}{22,4}=0,6\left(mol\right)\)
\(\Rightarrow V=\dfrac{0,6}{2}=0,3\left(l\right)\)
\(\left\{{}\begin{matrix}AlCl_3\\ZnCl_2\end{matrix}\right.+AgNO_3\rightarrow\left\{{}\begin{matrix}Al\left(NO_3\right)_3\\Zn\left(NO_3\right)_3\end{matrix}\right.+AgCl\downarrow\)
Bào toàn nguyên tố Cl:
\(n_{AgCl}=n_{HCl}=0,6\left(mol\right)\)
\(\Rightarrow m=m_{AgCl}=0,6.143,5=86,1\left(g\right)\)