$1)\begin{cases}n_S=0,15 mol \\n_{Zn}=0,1 mol \end{cases}\overset{h=80\%}{\rightarrow}\begin{cases}n_S=0,07 mol \\n_{ZnS}=0,08 mol\\n_{Zn}=0,02 mol \end{cases}\overset{+HCl}{\rightarrow}\begin{cases}n_{H_2S}=0,08 mol \\n_{H_2}=0,02 mol \end{cases}$$\Rightarrow V=2,24 lit\Rightarrow Chon:C$$2)\begin{cases}n_{Mg}=x mol \\ n_{Al}=y mol\\n_{Fe}=z mol \end{cases}\Rightarrow \begin{cases}24x+27y+56z=2,43 \\ x+1,5y+z=0,1\\40x+160(0,5z)=1,6 \end{cases}\Rightarrow y=...$
$1)\begin{cases}n_S=0,15 mol \\n_{Zn}=0,1 mol \end{cases}\overset{h=80\%}{\rightarrow}\begin{cases}n_S=0,07 mol \\n_{ZnS}=0,08 mol\\n_{Zn}=0,02 mol \end{cases}\overset{+HCl}{\rightarrow}\begin{cases}n_{H_2S}=0,08 mol \\n_{H_2}=0,02 mol \end{cases}$$\Rightarrow V=2,24 lit\Rightarrow Chon:C$$2)\begin{cases}n_{Mg}=x mol \\ n_{Al}=y mol\\n_{Fe}=z mol \end{cases}\Rightarrow \begin{cases}24x+27y+56z=2,43 \\ x+1,5y+z=0,1\\40x+160(0,5z)=1,6 \end{cases}\Rightarrow x=...$
$1)\begin{cases}n_S=0,15 mol \\n_{Zn}=0,1 mol \end{cases}\overset{h=80\%}{\rightarrow}\begin{cases}n_S=0,07 mol \\n_{ZnS}=0,08 mol\\n_{Zn}=0,02 mol \end{cases}\overset{+HCl}{\rightarrow}\begin{cases}n_{H_2S}=0,08 mol \\n_{H_2}=0,02 mol \end{cases}$$\Rightarrow V=2,24 lit\Rightarrow Chon:C$$2)\begin{cases}n_{Mg}=x mol \\ n_{Al}=y mol\\n_{Fe}=z mol \end{cases}\Rightarrow \begin{cases}24x+27y+56z=2,43 \\ x+1,5y+z=0,1\\40x+160(0,5z)=1,6 \end{cases}\Rightarrow
y=...$