Предмет: Химия, автор: wilyamskaya

Определите объем кислорода в 25 л воздуха

Ответы

Автор ответа: Zikriolloh

1

Ответ:

В воздухе содержится 21% кислорода

21%=21%/100%=0.21%

25:0.21=119лO2

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