a) PTHH: Fe + 2HCl --> FeCl2 + H2
b) \(n_{Fe}=\dfrac{11,2}{56}=0,2\left(mol\right)\)
PTHH: Fe + 2HCl --> FeCl2 + H2
0,2-->0,4------>0,2-->0,2
=> \(V_{H_2}=0,2.22,4=4,48\left(l\right)\)
c) \(m_{HCl}=0,4.36,5=14,6\left(g\right)\)
d) \(m_{FeCl_2}=0,2.127=25,4\left(g\right)\)