Предмет: Химия, автор: radyukanya

Какую массу кислорода добыли разложением воды электрическим током, если пропустили ток через 180 мл воды, а водорода образовалось 20 гр?

Ответы

Автор ответа: Рома71293

Ответ:

160 гр o2

Объяснение:

2h2o-->2h2+o2

мы находим сколько моль воды подверглось электролизу по продукту водороду

20/(2×2)=5 моль водорода теперь находим массу кислорода 5×32(o2)=160 гр o2 выделилось

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