I. 1. Reactionează
2. MCH3COOH=60g/mol
%O=mO/M*100=32/60*100=53.33
3. Reactionează
4. Otet
II. b) 4
III. CaO + 2CH3-COOH --) (CH3-COO)2Ca + H2O
MCaO=56g/mol
MCH3-COOH=60g/mol
Macetat de calciu=158g/mol
56g CaO....120g ac.acetic...158g acetat de calciu
20g CaO....x=42.8571 ac.acetic...y=56.428g acetat de calciu
n(eta)=mp/mt*100=39.5/56.428*100=70%