Ca(OH)2 + CO2 -> CaCO3 + H2O (1)
nA=0,15(mol)
nCaCO3=0,2(mol)
Từ 1:
nCaCO3=nCO2=0,2(mol)
=>nC=0,2(mol)
Đặt nCH4=a
nC2H4=b
Ta có hệ:
\(\left\{{}\begin{matrix}a+b=0,15\\a+2b=0,2\end{matrix}\right.\)
=>a=0,1;b=0,05
%VCH4=\(\dfrac{0,1}{0,15}.100\%=66,67\%\)
%VC2H4=100-66,67%=33,33%