Предмет: Химия, автор: Аноним

Пожалуйста помогите с химией.

Приложения:

Ответы

Автор ответа: Astatine210

1

Ответ: 20%

Объяснение:

Дано:

m(соли) = 120 г

m(H20) = 480 г

Найти: w(соли) - ?

Решение:

w(соли) = m(соли) : (m соли + m H2O ) * 100% = 120г : (120г+480г) * 100% = 120г : 600г * 100% = 20%

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