C2H2+2Br2->C2H2Br4
x-----------2x
C2H4+Br2->C2H4Br2
y-----------2y
n Br2=0,8 mol
\(\left\{{}\begin{matrix}x+y=0,6\\2x+y=0,8\end{matrix}\right.\)
=>x=0,2 ,y=0,4 mol
=>%VC2H2=\(\dfrac{0,2.22,4}{13,44}100\)=33,33%
=>%C2H4=66,67%
C2H4+3O2-tO>2CO2+2H2O
C2H2+5\2O2-to>2CO2+H2O
=>Vkk=1,7.22,4.5=190,4l
\(n_{hh}=\dfrac{13,44}{22,4}=0,6mol\)
\(n_{Br_2}=0,4\cdot2=0,8mol\)
\(C_2H_4+Br_2\rightarrow C_2H_4Br_2\)
x x x
\(C_2H_2+2Br_2\rightarrow C_2H_2Br_4\)
y 2y y
\(\Rightarrow\left\{{}\begin{matrix}x+y=0,6\\x+2y=0,8\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}x=0,4\\y=0,2\end{matrix}\right.\)
a)\(\%V_{C_2H_4}=\dfrac{0,4}{0,4+0,2}\cdot100\%=66,67\%\)
\(\%V_{C_2H_2}=100\%-66,67\%=33,33\%\)
b)\(C_2H_4+3O_2\underrightarrow{t^o}2CO_2+2H_2O\)
\(C_2H_2+\dfrac{5}{2}O_2\underrightarrow{t^o}2CO_2+H_2O\)
\(\Rightarrow n_{O_2}=3n_{C_2H_4}+\dfrac{5}{2}n_{C_2H_2}=3\cdot0,4+\dfrac{5}{2}\cdot0,2=1,7mol\)
\(\Rightarrow V_{O_2}=1,7\cdot22,4=38,08l\)
\(\Rightarrow V_{kk}=5V_{O_2}=5\cdot38,08=190,4l\)