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Ответ дан
mrvladimir2

Дано:

n(C₂H₅OH) = 3 моль

Знайти:

m(C₂H₅OH) - ?

Розв'язок.

М(C₂H₅OH) = 46 г/моль

m(C₂H₅OH) = n(C₂H₅OH)*М(C₂H₅OH) = 3 моль*46 г/моль = 138 г

Ответ: 138 г

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