Предмет: Химия, автор: knaut

30 мл газа весят 90 мг (н.у.). Состав газа: 52,57% Cl, 47,43% O. Определите формулу газа


Ответы

Автор ответа: arkoure
0
Зная массу газа и доли входящих в него элементов, находим массы каждого элемента:
хлор: 0,9 * 52,57/100 = 0,47 г
кислород: 0,9 * 47,43/100 = 0,43 г
Из масс определяем количества вещества:
хлор: 0,47/35,5 = 0,013 моль
кислород: 0,43/16 = 0,026 моль
Приводим к целым числам
хлор - 2
кислород - 1
Формула газа: Cl2O
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