Предмет: Химия, автор: elenaaaaaaaaaaa123

как найти число атомов элемента в молекуле веществе калия

Ответы

Автор ответа: Gerren

N=n*Na, где n - колличество вещества( моль), Na- постоянная Авагадро/ Na=6,022*10^23
M(K)=39 моль/грамм
N(K)=39*6,022*10^23=234,858*10^23 атомов

Автор ответа: elenaaaaaaaaaaa123

а как найти то n

Автор ответа: Gerren

n=M/m

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