Предмет: Химия, автор: kewakom

Всем привет ) помогите Плиз ) взаимодействии раствора аминоуксусной кислоты массой 150 грамм с массовой долей кислоты 30 процентов и раствора гидроксида натрия содержащего 30 грамм натрия образуется соль массой:


kewakom: Никто не знает что ли:с
kewakom: да натрия содержащего 30 грамм натрия образуется соль массой:<br />

Ответы

Автор ответа: aygulismagambe
0
mвещества(аминоукс кисл)=150г*30%/100%=45г;
NH2-CH2-COOH + NaOH = NH2-CH2-COONa =H2O;
M(аминоуксусн)=75;
Mr(NaOH)=40;
M(соли)=97;
n(аминоуксу кисл)=m/M=45/75=0,6моль;
n(NaOH)=30/40=0,75моль;
(аминоукс кисл)<(NaOH);
m(соль)=n*M=0,6моль*97г=58,2г

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