w=18%=0,18
2HCl+Fe - FeCl2 + H2
m.чист.(HCl) = mр(HCl) * w(HCl) = 60г × 0,18=10,8г
n(HCl) = m/M = 10,8/36,5=0,3 моль
2n(HCl) = n(H2) = 0,15моль
V(H2) =Vm × n = 22,4 ×0,15=3.36 дм3
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w=18%=0,18
2HCl+Fe - FeCl2 + H2
m.чист.(HCl) = mр(HCl) * w(HCl) = 60г × 0,18=10,8г
n(HCl) = m/M = 10,8/36,5=0,3 моль
2n(HCl) = n(H2) = 0,15моль
V(H2) =Vm × n = 22,4 ×0,15=3.36 дм3