C2H5OH+CH3COOH=CH3COOC2H5+H2O 1 моль------1 моль-------1 моль n(эфира C4H8O2)=10/88=0.11 моль=n(C2H5OH)=n(CH3COOH) Mr(C4H8O2)=88 m(C2H5OH)=46*0.11=5.23 г m(CH3COOH)=60*0.11=6.6 г