CxH(2x-2)O2
12x·100/(14x + 30) = 50 24x = 14x + 30 10 x = 30 x = 3
acid : CH2=CH-COOH + CnH(2n+2)O ⇒ CH=CH-OCO-CnH(2n+1) + H2O
M ester = M acid + Malcool - 18 = 72 + 14n + 18 - 18 = 72 + 14n
12(3 + n)·100/(72 + 14n) = 63,158
57 + 19n = 72 + 14n 5n = 15 n = 3 alcool : propanol
ester : acrilat de propil