Предмет: Химия, автор: kakmnevsenadoelo

сколько литров атмосферного воздуха потребуется, чтобы получить из него 6,3 * 10 24(степень) молекул кислорода
желательно с пояснениями

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Ответы

Автор ответа: clonickk
1

Кислорода в атмосферном воздухе - 21%, азота 78% остальное это газы.

(Число Авагадро даётся в 23 степени. 24 степень переводим в 23)

63 · 10²³ - 21%

        Х  - 100%

Отсюда Х = 287,1 · 10²³

Надо найти моли воздуха = 287,1 · 10²³/6,02 · 10²³=47,6 молей

Ответ: 47,6 ·  22,4 = 1066,2 литров атмосферного воздуха потребуется для получения 6,3 · 10²⁴

kakmnevsenadoelo: а что мы здесь берем за х?
kakmnevsenadoelo: и как мы его нашли
kakmnevsenadoelo: разобралась
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