Предмет: Химия, автор: valensdfg

вычисли массовую долю вещества в растворе, образовавшийся при смешивании раствора соли массой 100г массовой долей соли 20% и раствора этой же соли массой 20 г массовой долей 50%

Ответы

Автор ответа: zukovavika857

Ответ:

Объяснение:w=((0,2*100+0,08*80)/180)*100%≈14,7%

valensdfg: в учебнике написано что ответ должен быть 25 %

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