Question

Acidul carboxilic care se obtine prin fermentatie acetica a alcoolului etilic
A) contine 53,33%C
B) contine 40% O
C) contine 53,33 O
D) contine 13,32% H

Answer 1

prin fermentatia alcoolului se obtine acid acetic, CH3COOH
M=(24gC+4gH+32gO)/mol= 60g/mol
60gacid.......24gC.....4gH.......32gO
100G................X...........Y...............Z
calculeaza x,y,z si identifica rezultatul corect .