\(\begin{array} {l} n_{Br_2}=\dfrac{41,6}{160}=0,26(mol)\\ \text{Đặt }n_{C_2H_4}=x(mol);n_{C_2H_2}=y(mol)\\ \to x+y=\dfrac{4,48}{22,4}=0,2(1)\\ C_2H_4+Br_2\to C_2H_4Br_2\\ C_2H_2+2Br_2\to C_2H_2Br_4\\ \text{Theo PT: }x+2y=n_{Br_2}=0,26(2)\\ (1)(2)\to\begin{cases} x=0,14\\ y=0,06 \end{cases} \\ \to \begin{cases} \%V_{C_2H_4}=\dfrac{0,14}{0,2}.100\%=70\%\\ \%V_{C_2H_2}=100-70=30\% \end{cases} \end{array}\)
\(\begin{array} {l} n_{Br_2}=\dfrac{41,6}{160}=0,26(mol)\\ \text{Đặt }n_{C_2H_4}=x(mol);n_{C_2H_2}=y(mol)\\ \to x+y=\dfrac{4,48}{22,4}=0,2(1)\\ C_2H_4+Br_2\to C_2H_4Br_2\\ C_2H_2+2Br_2\to C_2H_2Br_4\\ \text{Theo PT: }x+2y=n_{Br_2}=0,26(2)\\ (1)(2)\to\begin{cases} x=0,14\\ y=0,06 \end{cases} \\ \to \begin{cases} \%V_{C_2H_4}=\dfrac{0,14}{0,2}.100\%=70\%\\ \%V_{C_2H_2}=100-70=30\% \end{cases} \end{array}\)