Предмет: Химия, автор: Аноним

0,36г металла присоединили 168мл(н.у)кислорода.Определить эквивалентность металла

Ответы

Автор ответа: olhim

Пишем уравнение
Me + O2 = MeO
Считаем количество вещества эквивалента кислорода n(экв) = V/Vm(экв) = 0.168/5.6 = 0.03 моль
Считаем молярную массу эквивалента металла M(экв)(Me) = m/n(экв) = 0.36/0.03 = 12 г/моль
Ответ: M(экв)(Me) = 12 г/моль

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