Ta có: \(d_{\left(SO_2,O_2\right)/H_2}=24\Rightarrow M_{hh}=24.2=48\left(g/mol\right)\)
\(\Rightarrow\dfrac{64n_{SO_2}+32n_{O_2}}{n_{SO_2}+n_{O_2}}=48\)
\(\Rightarrow n_{SO_2}=n_{O_2}\)
\(\Rightarrow\left\{{}\begin{matrix}\%V_{SO_2}=\dfrac{22,4.n_{SO_2}}{22,4.\left(n_{SO_2}+n_{O_2}\right)}.100\%=\dfrac{22,4.n_{SO_2}}{22,4.\left(n_{SO_2}+n_{SO_2}\right)}.100\%=50\%\\\%V_{O_2}=100-50=50\%\end{matrix}\right.\)