Предмет: Химия, автор: fatima2ulduz2

Найти массу соли и воды для получения 200г. 6% раствора?
И как записать дано к этой задаче ?
Помогите пожалуйста !

Ответы

Автор ответа: shuhnina

0

Дано: м(раствора) =200г
W(р-ра) =6%
найти: м (соли); м(Н2О)
Решение.
1) находим массу соли.в растворе. м (соли) = 200г*6%/100% =12г
2)иасса воды = м(р-ра) - м(соли) =200г-12г =188г

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