Răspuns:
ASTA CE VARIANTA ESTE ?
Explicație: C=20% , 240g APA
Cx(inmultit) 100 ; ms= md+m apa = md + 240
10md=2md+480
md=60 g acid acetic
60 g x g
2CH3COOH + MgO ----> (CH3COO)2 Mg + H2O
2x 60g 142 g
MCH3COOH= 60g/mol
M (CH3COO)= 142g/mol
x=71 g acetat de Mg