\(n_{Fe}=\dfrac{11,2}{56}=0,2\left(mol\right)\)
PT: \(Fe+2HCl\rightarrow FeCl_2+H_2\)
a, \(n_{H_2}=n_{Fe}=0,2\left(mol\right)\Rightarrow V_{H_2}=0,2.22,4=4,48\left(l\right)\)
b, \(n_{HCl}=2n_{Fe}=0,4\left(mol\right)\Rightarrow C_{M_{HCl}}=\dfrac{0,4}{0,15}=\dfrac{8}{3}\left(M\right)\)
c, \(n_{FeCl_2}=n_{Fe}=0,2\left(mol\right)\Rightarrow C_{M_{FeCl_2}}=\dfrac{0,2}{0,15}=\dfrac{4}{3}\left(M\right)\)