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m.cz C3H4=3+12u+4+1u=40u
m.at H=1u
1u*4=4u
40u—100%
4u—x%
X=10%
Butyn)
m.cz C4H6=54u
m.at H=1u
6+1u=6u
100%-54u
X%—6u
X=11,11% H