formula moleculara a esterului saturat care are raportul atomic C:H:O = 1:2:1
CnH2nO2
n/1 = 2n/2 = 2/1
=> n/1 = 2/1 => n = 2
=> C2H4O2
formula moleculara a diesterului aromatic (para disubstituit) cu raportul atomic C:H:O = 2,5:2,5:1.
C6H4(CnH2n-1O2)2
=> 2n+6 at C , 4n-2+4 = 4n+2 at H , 4 at O
=> 2n+6/2,5 = 4n+2/2,5 = 4/1
=> 2n+6/2,5 = 4/1 => 2n+6 = 10
=> n = 2
=> C6H4(C2H3O2)2
