Предмет: Химия, автор: юрик57

задача в 150 грамм растварили 50 грам фосфорной кислоты найти массовую долю кислотытв полученном растворе

Ответы

Автор ответа: Лайма

0

m( ра-ра)= 150+50=200г.
Массовая доля (кислоты) = 50:200х100%=25%

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