\(n_{HCl}=\dfrac{800.3,65\%}{36,5}=0,8\left(mol\right)\)
Gọi x,y lần lượt là số mol của \(Fe_2O_3;FeO\)
Pt: \(Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\) (1)
x \(\rightarrow\) 6x \(\rightarrow\) 0,2 mol
Pt: \(FeO+2HCl\rightarrow FeCl_2+H_2\) (2)
y \(\rightarrow\) 2y \(\rightarrow\) 0,1mol \(\rightarrow\) 0,1mol
(1)(2) \(\Rightarrow\left\{{}\begin{matrix}160x+72y=23,2\\6x+2y=0,8\end{matrix}\right.\) \(\Rightarrow\left\{{}\begin{matrix}x=0,1\\y=0,1\end{matrix}\right.\)
\(\Sigma_{m\left(spu\right)}=23,2+800-0,1.2=823\left(g\right)\)
\(C\%_{Fe_2O_3}=\dfrac{0,1.160.100}{823}=2\%\)
\(C\%_{FeO}=\dfrac{0,1.72.100}{823}=0,87\%\)
\(C\%_{FeCl_3}=\dfrac{0,2.162,5.100}{823}=4\%\)
\(C\%_{FeCl_2}=\dfrac{0,1.127.100}{823}=1,54\%\)
