\(a.Zn+2HCl\rightarrow ZnCl_2+H_2\\ Fe+2HCl\rightarrow FeCl_2+H_2\\ b.m_{Fe}=60,5.66,77\%=41g\\ \Rightarrow n_{Fe}=\dfrac{41}{56}=0,73\left(mol\right)\\ n_{Zn}=\dfrac{60,5-41}{65}=0,3\left(mol\right)\\ \Sigma n_{H_2}=n_{Fe}+n_{Zn}=0,73+0,3=1,03\left(mol\right)\\ V_{H_2}=1,03.22,4=23,072\left(l\right)\)
a, PT: \(Zn+2HCl\rightarrow ZnCl_2+H_2\)
\(Fe+2HCl\rightarrow FeCl_2+H_2\)
b, Ta có: \(m_{Fe}=60,5.67,77\%=41\left(g\right)\Rightarrow n_{Fe}=\dfrac{41}{56}\left(mol\right)\)
\(m_{Zn}=60,5-41=19,5\left(g\right)\Rightarrow n_{Zn}=\dfrac{19,5}{65}=0,3\left(mol\right)\)
Theo PT: \(n_{H_2}=n_{Zn}+n_{Fe}=\dfrac{289}{280}\left(mol\right)\)
\(\Rightarrow V_{H_2}=\dfrac{289}{280}.22,4=23,12\left(l\right)\)