Предмет: Химия, автор: Аноним

- Обчислити масову частку Оксигену в сполуці HNO3 срочноооо!!!!!​

Ответы

Автор ответа: qweeerrtsvvbjne
0

Ответ:

Дано:

НNO3

W(O)-?

Розв'язання:

Mr(HNO3)=1+14+16×3=63г/моль

W(O)=16/63×100%=25,40%

Автор ответа: klsxxny
0

Ответ:

Mr(HNO3)=1+14+16*3=63г

W(O)=16*3:63=0,76=76%

Объяснение: вроде должно быть верно

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