\(\text{CO+CuO}\rightarrow\text{Cu+CO2}\)
\(\text{CO2+2NaOH}\rightarrow\text{Na2CO3+H2O}\)
\(\text{Na2CO3+BaCl2}\rightarrow\text{BaCO3+2NaCl}\)
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\(n_{CO2}=n_{BaCO3}=\frac{m}{197}\left(mol\right)\)
\(n_{CO2}=\frac{V}{22,4}\)
\(\rightarrow H=\frac{m}{197}:\frac{V}{22,4}.100=\frac{2240m}{197}\%\)
\(n_{CuO}=\frac{a}{80}\)
\(\rightarrow H=\frac{m}{197}:\frac{a}{80}.100=\frac{8000m}{197}\%\)