\(n_{O_2}=\dfrac{V_{O_2}}{22,4}=\dfrac{2,24}{22,4}=0,1mol\)
\(n_{CH_4}=\dfrac{m_{CH_4}}{M_{CH_4}}=\dfrac{2,4}{16}=0,15mol\)
\(CH_4+2O_2\rightarrow\left(t^o\right)CO_2+2H_2O\)
1 2 1 2 ( mol )
0,15 > 0,1 ( mol )
0,05 0,1 0,05 0,2 ( mol )
\(m_{H_2O}=n_{H_2O}.M_{H_2O}=0,2.18=3,6g\)
\(V_{CO_2}=n_{Co_2}.22,4=0,05.22,4=1,12l\)
Chất dư là \(CH_4\)
\(n_{CH_4\left(du\right)}=0,15-0,05=0,1mol\)
\(m_{CH_4\left(du\right)}=n_{CH_4\left(du\right)}.M_{CH_4}=0,1.16=1,6g\)
\(\%CH_4\left(du\right)=\dfrac{1,6.100}{2,4}\simeq66,67\%\)