Предмет: Химия, автор: magdalinaamina56

Какая речовина мистыть больше оксыду? СРОЧНО ​

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Автор ответа: gilinalu
0

Ответ:

M(FeO)=56+16=72 г/моль, w(O)=16/72=0.22, или 22%

В Fe3O4 массовая доля кислорода 64/216=0,276 или 27,6 %

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