Предмет: Химия, автор: lerochka144

ПОМОГИТЕ!!!Сколько атомов содержится в 3,2 г кислорода O2?

Ответы

Автор ответа: 20002720

0

n(O2)=3.2/32=0.1
N=0.1*6.02*10^23=0.602*10^23

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