Предмет: Химия, автор: r32468155

Для борьбы с вредителями сельскохозяйственных культур приготовили раствор из 8 г сульфата меди(2) и 492 г воды.Вычислите массовую долю(в процентах)соли в приготовленном растворе.

Ответы

Автор ответа: anelya777

12

Мас доля= (m в-ва/mр-ра)*100%
Мас доля=(8/(8+492))*100%=1,6%

В правильности решения задач уверенна на 100%

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