CTTQ của X : \(C_nH_{2n-2}\)
\(C_nH_{2n-2} + \dfrac{3n-1}{2}O_2 \xrightarrow{t^o} nCO_2 + (n-1)H_2O\\ n_{O_2} = 0,1.\dfrac{3n-1}{2} = \dfrac{12,992}{22,4} =0,58\\ \Rightarrow n = 4,2\)
Vậy X gồm : \(C_4H_6(x\ mol) ;C_5H_8(y\ mol)\)
Ta có :
\(n_X = x + y = 0,1\\ n_{O_2} = \dfrac{3.4-1}{2}x + \dfrac{3.5-1}{2} = 0,58\\ \Rightarrow x = 0,08 ; y = 0,02\\ \Rightarrow \%n_{C_4H_6} = \dfrac{0,08}{0,1}.100\% = 80\%\)
\(CT:C_{\overline{n}}H_{2\overline{n}-2}\)
\(C_{\overline{n}}H_{2\overline{n}-2}+\dfrac{3\overline{n}-1}{2}O_2\underrightarrow{t^0}\overline{n}CO_2+\left(\overline{n}-1\right)H_2O\)
\(1.................\dfrac{3\overline{n}-1}{2}\)
\(0.1.................0.58\)
\(\Rightarrow3\overline{n}-1=\left(\dfrac{0.58}{0.1}\right)\cdot2=11.6\)
\(\Rightarrow\overline{n}=4.2\)
\(CT:C_4H_6,C_5H_8\)
\(n_{C_4H_6}=a\left(mol\right),n_{C_5H_8}=b\left(mol\right)\)
\(n_X=a+b=0.1\left(1\right)\)
\(C_4H_6+\dfrac{11}{2}O_2\underrightarrow{t^0}4CO_2+3H_2O\)
\(C_5H_8+7O_2\underrightarrow{t^0}5CO_2+4H_2O\)
\(n_{O_2}=\dfrac{11}{2}a+7b=0.58\left(2\right)\)
\(\left(1\right),\left(2\right):a=0.08,b=0.02\)
\(\%C_4H_6=80\%,\%C_5H_8=20\%\)
