Предмет: Химия, автор: komilovarisolat9

.К смеси алюминия и меди массой 3,0 г добавили избыток концентрированной азотной кислоты. Для полного по-
глощения выделившегося газа потребовался гидроксид натрия массой 10,0 г с массовой долей растворенного вещества 24 %.
Вычислите массу алюминия и меди в исходной смеси.

Ответы

Автор ответа: polzovatellubov

Ответ:

10.0-3.0г=7.0г 24 ÷7 =3.4285714286

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