..deweqoehy8wqgteyqgy8e
a, \(Fe+H_2SO_4\rightarrow FeSO_4+H_2\)
\(n_{H_2SO_4}=1\times0,2=0,2\left(mol\right)\)
\(Theo\)\(PT\)\(:\)\(n_{Fe}=n_{H_2SO_4}=0,2\left(mol\right)\)
\(\Rightarrow m_{Fe}=0,2\times56=11,2\left(g\right)\)
b, \(V_{ddsau}=200ml=0,2l\)
\(Theo\)\(PT\)\(n_{FeSO_4}=n_{Fe}=0,2\left(mol\right)\)
\(\Rightarrow C_{M\left(FeSO_4\right)}=\frac{0,2}{0,2}=1M\)