Предмет: Химия, автор: den4ik6224

Яка маса солі міститься у 112 г розчину чину з масовою часткою цієї солі 4%?

Ответы

Автор ответа: dyexfnf

0

Ответ:

Объяснение:

Дано:

m(р-ну) = 112 г

w(солі) = 4 % = 0,04

Найти: m(солі)- ?

Обчислимо масу солі, яка необхідна для виготовлення розчину

m(солі) = m(р-ну) * w(солі) = 112 * 0,04 = 4,48 г

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