\(n_{hhkhí\left(H_2,H_2S\right)}=\dfrac{2,24}{22,4}=0,1\left(mol\right)\)
Gọi \(\left\{{}\begin{matrix}n_{Fe}=a\left(mol\right)\\n_{FeS}=b\left(mol\right)\end{matrix}\right.\)
PTHH:
Fe + 2HCl ---> FeCl2 + H2
a a
FeS + 2HCl ---> FeCl2 + H2S
b b
Hệ pt \(\left\{{}\begin{matrix}56a+88b=7,2\\a+b=0,1\end{matrix}\right.\Leftrightarrow a=b=0,05\left(mol\right)\)