Предмет: Химия, автор: mmonolitich

Вычислите объем воздуха (н.у.), который потребуется для сжигания 48г магния.
(Напоминаем, что объемная доля кислорода в воздухе равна 0,21)

Ответы

Автор ответа: NURSOULTAN
3

Ответ:

2Mg + O2 = 2MgO

x = 48 × 22.4 / 48 = 22.4 л

22. 4 = 21%

Х = 100%

х= 22.4 × 100 / 21 = 106 л

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