Предмет: Химия, автор: Ratotyia

в 50 грамм раствора содержится 2,5 грамма гидроксида калия КОН. вычеслить массовую долю кон.

Ответы

Автор ответа: ndambaeva

0

w=mrv/mr-ra·100%
w=2.5/50·100%=5%

Автор ответа: Ratotyia

0

спасибо

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