Giả sử có 100g hỗn hợp
\(\Rightarrow m_{SO2}=8\%.100=8\left(g\right)\Rightarrow n_{SO2}=\frac{8}{64}=0,125\)
\(\Rightarrow m_{O2}=9,5.100\%=9,5\rightarrow n_{O2}=\frac{9,5}{32}=\frac{19}{64}\)
\(\Rightarrow m_{N2}=82,5.100\%=82,5\Rightarrow n_{N2}=\frac{82,5}{28}=\frac{165}{56}\)
Tổng số mol \(=0,125+\frac{19}{64}+\frac{165}{56}=\frac{1509}{448}\)
\(\Rightarrow\%V_{SO2}=\frac{0,125}{\frac{1509}{448}}=3,71\%\)
\(\Rightarrow V_{O2}=\frac{\frac{19}{64}}{\frac{1509}{448}}=8,81\%\)
\(\Rightarrow\%V_{N2}=100\%-3,71\%-8,81\%=87,48\%\)