ecuatia reactiei
CH3COOH + CH3CH2OH---> CH3COOCH2CH3 +H2O
-M,acid= 60g/mol
M,alcool= 46g/mol
M,ester= 88g/mol
-moli ester din masa data : n= 352g/ 88g/mol= 4mol
-din ecuatie rezulta
4mol acid........4 mol alcool ....4 mol ester
-m,acid= 4molx60g/mol= 240g acid pur
-m,alcool= 4 molx 46g/mol= 184g alcool pur
masele de acid si alcool impure
98/100=240/m...............calculeaza
96/100=184/m...............calculeaza