\(n_{CO_2}=\dfrac{48,4}{44}=1,1\left(mol\right)\\ n_{H_2O}=\dfrac{29,7}{18}=1,65\left(mol\right)\\ Vì:n_{H_2O}>n_{CO_2}\Rightarrow hhZ:hh.ankan\\ CTTQ:C_aH_{2a+2}\\ Ta.có:1< \dfrac{n_{CO_2}}{n_{H_2O}}=\dfrac{1,65}{1,1}=1,5< 2\\ \Rightarrow hh.Z:50\%V_{CH_4},50\%V_{C_2H_6}\\ \Rightarrow\%m_{\dfrac{CH_4}{hhZ}}=\dfrac{16}{16+28}.100\approx36,364\%\\ \Rightarrow\%m_{\dfrac{C_2H_6}{hhZ}}\approx63,636\%\)