Ta có:
\(V_A=6720\left(ml\right)\)
Vì : \(V_{CH4}+V_{H2S}=V_A=6,72,V_{CH4}:V_{H2S}=1:2\)
\(\Rightarrow V_{CH4}=2240\left(ml\right);V_{H2S}=4480\left(ml\right)\)
\(\%V_{CH4}=\frac{2240}{6720}=33,33\%\Rightarrow\%V_{H2S}=100\%-33,33\%=66,67\%\)
Phản ứng cháy:
\(CH_4+2O_2\rightarrow CO_2+2H_2O\)
\(2H_2S+3O_2\rightarrow2SO_2+2H_2O\)
\(\Rightarrow V_{O2}=2V_{CH4}+\frac{3}{2}V_{H2S}=2240.2+4480.\frac{3}{2}=11200\left(ml\right)\)