Предмет: Химия, автор: ada5556

Обчисліть масу цинк (ІІ) оксиду кількістю речовини 3 моль.

Ответы

Автор ответа: liza2004che

Ответ:

Объяснение:

Дано:

n(ZnO)=3 моль

m(ZnO)-?

Розв*язок:

m=n×M, M(ZnO)=65+16=81г/моль

m(ZnO)=3×81=243(г)

Відповідь: m(ZnO)=243 г

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