CH2(NH2)-COOH+NaOH=CH2(NH2)-COONa+H2O
1 1
n(NaOH)=20:40=0,5;n(CH2(NH2)-COOH)=0,5;m(CH2(NH2)-COOH)=0,5*75=37,5;
m(р-ра к-ты)=37,5:0,25=150гр.
CH2(NH2)-COOH+NaOH=CH2(NH2)-COONa+H2O
1 1
n(NaOH)=20:40=0,5;n(CH2(NH2)-COOH)=0,5;m(CH2(NH2)-COOH)=0,5*75=37,5;
m(р-ра к-ты)=37,5:0,25=150гр.