a, \(n_{CO2}=\frac{8,96}{22,4}=0,4\left(mol\right)\)
\(n_{H2O}=\frac{7,2}{18}=0,4\left(mol\right)\)
\(\Rightarrow X,Y:Anken\)
\(\Rightarrow C=\frac{0,4}{0,15}=2,67\)
Vậy X là C2H4 , Y là C3H6
b,
\(hh:C_2H_4:a\left(mol\right):C_3H_6:b\left(mol\right)\)
Giải hệ PT:
\(\left\{{}\begin{matrix}a+b=0,15\\2a+3b=0,4\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}a=0,05\\b=0,1\end{matrix}\right.\)
\(\Rightarrow\%_{C2H4}=33,33\%\Rightarrow\%C_3H_6=66,67\%\)