m1(C2H5OH)=1000*0.94*0.4=376г
m2(C2H5OH)=1000*0.94*0.6=564г
m(общая)=376+564=940г
m(общая раствора)=(1000+1000)*0,94=1880г
n(C2H5OH)=940/(24+5+17)=20.4моль
V=1880/0.92=2043.5мл=2,0435л
с=n/V=20.4/2.0435=9.98моль/л
m1(C2H5OH)=1000*0.94*0.4=376г
m2(C2H5OH)=1000*0.94*0.6=564г
m(общая)=376+564=940г
m(общая раствора)=(1000+1000)*0,94=1880г
n(C2H5OH)=940/(24+5+17)=20.4моль
V=1880/0.92=2043.5мл=2,0435л
с=n/V=20.4/2.0435=9.98моль/л