Предмет: Химия, автор: MrYaGyAr

из раствора хлорида натрия массой 560г с массовой долей 30% выпаривали воду массой 120г. какова массовая доля (%) вещества в полученном растворе

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Автор ответа: Mankeysy

11

Ответ: 38,2%

Объяснение: находится на фото

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