Gọi x là nZn, y là nFe
\(n_{H2}=\frac{10,08}{22,4}=0,45\left(mol\right)\)
\(PTHH:Zn+2HCl\rightarrow ZnCl_2+H_2\)
________x______________x____________
\(Fe+2HCl\rightarrow FeCl_2+H_2\)
y _____________y_______
\(\left\{{}\begin{matrix}x+y=0,45\\2x-y=0\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}x=0,15\\y=0,3\end{matrix}\right.\)
\(m_{Zn}=0,15.65=9,75\left(g\right)\)
\(m_{Fe}=0,3.56=16,8\left(g\right)\)
Zn+2HCl->ZnCl2+H2
Fe+2HCl->FeCl2+H2
nH2=10,08\22,4=0,45 mol
=>nhh=0,2 mol
mà Zn:Fe=2:1
=>nZn=0,2.2\3=0,133 mol
=>=>mZn=0,133.65=8,67g
=>nFe=0,2.1\3=0,067 mol
=>mFe=0,067.56=3,73g
Zn+2HCl->ZnCl2+H2
Fe+2HCl->FeCl2+H2
nH2=10,08\22,4=0,45 mol
=>nhh=0,2 mol mà Zn:Fe=2:1
=>=>nZn=0,2.2\3=0,133 mol (ở đây sao có 2 dấu suy ra vậy linh :v?)
=>mZn=0,133.65=8,67g
=>nFe=0,2.1\3=0,067 mol =>mFe=0,067.56=3,73g