Ta có :
\(n_{H2}=\frac{10,08}{22,4}=0,45\left(mol\right)\)
\(\Rightarrow n_H=0,45.2=0,9\left(mol\right)\)
\(PTHH:Fe\rightarrow Fe^{2+}+2e\)
................0,45.........←.....0,9
\(H^++1e\rightarrow H\)
0,9.........0,9←0,9
\(m_{Fe}=0,45.56=25,2\left(g\right)\)
\(n_{HCl}=n_{Cl}=n_H=0,9\left(mol\right)\)
\(\Rightarrow V_{HCL}=\frac{0,9}{0,8}=1,125\left(l\right)\)
\(\Rightarrow m_{muoi}=25,2+0,9.35,5=57,15\)