2C2H5OH=CH2=CH-CH-CH2+H2+2H2O
n(C2H6O)=100 :46=2,17моль-избыток!
n(C4H6)=3<36:22,4=0,15моль;</p>
n(C2H6O)=0,15*2=0,3моль; m(C2H6O)=0,3*46=13,8г;
W(C2H6O)=13,8:100=0,138(13,8%).
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