Fe2O3+3H2-to>2Fe+3H2O
0,1125---0,3375----0,225 mol
n Fe=0,225 mol
=>m Fe2O3=0,1125.160=18g
=>VH2=0,3375.22,4=7,56l
a,\(n_{Fe}=\dfrac{12,6}{56}=0,225\left(mol\right)\)
PTHH: 3H2 + Fe2O3 ---to---> 2Fe + 3H2O
Mol: 0,3375 0,1125
\(m_{Fe_2O_3}=0,1125.160=18\left(g\right)\)
b, \(V0,3375.22,4=7,56\left(l\right)\)
\(PTHH:Fe_2O_3+3H_2\underrightarrow{t^o}3H_2O+2Fe\)
\(a,n_{Fe}=\dfrac{m}{M}=\dfrac{12,6}{56}=0,225mol\)
\(\rightarrow n_{Fe_2O_3}=n_{Fe}.1:2=0,225.1:2=0,1125mol\)
\(\Rightarrow m_{Fe_2O_3}=n.M=0,1125.160=18g\)
\(b,n_{H_2}=n_{Fe}.3:2=0,225.3:2=0,3375mol\)
\(\Rightarrow V_{H_2}=n.22,4=0,3375.22,4=7,56l\)