Предмет: Химия, автор: ernattoken7

Молекула белого фосфора состоит из четырех атомов этого элемента. Сколько молекул белого фосфора содержится в кристалле фосфора массой 2,48 г?

Ответы

Автор ответа: Аноним

4

m(P4) = 2.48 g

n(P4) = 2.48 / 124 = 0.02 mol

N(P4) = 6.02*10^23 * 0.02 = 0.1204*10^23 молекул

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