Предмет: Химия, автор: artemskydancer

обчислити об'єм водню який виділяється при взаємодії натрію та 9г води

Ответы

Автор ответа: НяшкаЮно

Рівняння реакції: 2Na+ 2H2O = 2NaOH + H2
Знаходимо кількість речовини води (n = m/M) та, за рівнянням реакції, nH2) = 1/2 n(H2O). За формулою V = nVм, де Vм - молярний об'єм, що дорівнює 22,4 л, знаходимо об'єм водню.
Усе зрозуміло?

Автор ответа: artemskydancer

вроде

Автор ответа: artemskydancer

а половина?

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