\(n_{CuO}=a\left(mol\right),n_{Fe_2O_3}=b\left(mol\right)\)
\(m=80a+160b=6\left(g\right)\left(1\right)\)
\(n_{H_2}=\dfrac{2.24}{22.4}=0.1\left(mol\right)\)
\(CuO+H_2\underrightarrow{^{^{t^0}}}Cu+H_2O\)
\(Fe_2O_3+3H_2\underrightarrow{^{^{t^0}}}2Fe+3H_2O\)
\(n_{H_2}=a+3b=0.1\left(mol\right)\left(2\right)\)
\(\left(1\right),\left(2\right):a=0.025,b=0.025\)
\(m_{kl}=0.025\cdot64+0.025\cdot2\cdot56=4.4\left(g\right)\)
\(b.\)
\(m_{hh}=3m_{Fe_2O_3}=6\left(g\right)\)
\(\Rightarrow n_{Fe_2O_3}=\dfrac{2}{160}=0.0125\left(mol\right)\)
\(\Rightarrow n_{CuO}=0.0125\left(mol\right)\)
\(m_{kl}=0.0125\cdot2\cdot56+0.0125\cdot64=2.2\left(g\right)\)
