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Compusul organic cu masa molara 42 g/mol,are formula procentuala:85,71% C si 14,28% H.Determina: a)formula moleculara; b) formula structurala

Răspuns :

a) nC=(℅C*M)/(AC*100)=(85,71*42)/(12*100) = 3 atomi C
nH=℅H*M/AH*100 = 14,28*42/100 = 6 atomi H
F.M => C3H6
b) H2C=CH-CH3 -> 1-propena