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mC4H10=4*12+10*1=58u
100%-58u
x%-48u
x=100*48/58
x=82,75%
b)penten
mC5H10=5*12+10*1=70u
100%-70
x%-60
x=100*60/70
x=85,71%
c)propyn
mC3H4=3*12+4*1=40u
100%-40
x%-36
x=100*36/40
x=90%
c=12 *4 = 48u
h= 1 *10 =10u
%c = 48/58 *100% = 82,75%
pentyn: c5h8 =68
c= 12*5=60
h=8*1=8
%c = 60/68 *100% =88,23
propyn = c3h4 = 40u
c=12*3 = 36u
h=4*1 = 4
%c= 36/40 *100% = 90%