a. PTHH: \(Fe+2HCl\rightarrow FeCl_2+H_2\)
b. \(n_{Fe}=\frac{m_{Fe}}{M_{Fe}}=\frac{28}{56}=0,5\left(mol\right)\)
Theo PTHH: \(n_{HCl}=2.n_{Fe}=2.0,5=1\left(mol\right)\)
\(\rightarrow m_{HCl}=n_{HCl}.M_{HCl}=1.36,5=36,5\left(g\right)\)
c. Theo PTHH: \(n_{FeCl_2}=n_{Fe}=0,5\left(mol\right)\)
\(\rightarrow m_{FeCl_2}=n_{FeCl_2}.M_{FeCl_2}=0,5.127=63,5\left(g\right)\)
d. Theo PTHH: \(n_{H_2}=n_{Fe}=0,5\left(mol\right)\)
\(\rightarrow V_{H_2}\left(đktc\right)=22,4.n_{H_2}=22,4.0,5=11,2\left(l\right)\)