Предмет: Химия, автор: anna1678

Определите химическое количество анионов HA– в растворе, содержащем кислоту Н2А химическим количеством 0,20 моль. Степень диссоциации двухосновной кислоты Н2А по первой ступени равна 100 %, по второй 10%.

Ответы

Автор ответа: Platinum15

0

Диссоциация кислоты двухступенчатая
H2A = H + + HA -
HA- = H + + A 2-
по второй ступени образуется количество молей 0.2 *0.1 = 0.02 моль
значит, по первой 0.2 - 0.02 = 0.18 моль

Автор ответа: anna1678

0

да, у меня такое же решение! Спасибо!

Автор ответа: Platinum15

0

вот и отлично ))

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