Предмет: Химия, автор: 99778787878787

240 г оксида магния прореагировало с азотной кислотой. Сколько моль азотной кислоты пошл на реакцию Даю 31 балл

Ответы

Автор ответа: NASTUHA6
0
348 моль  азотной кислоты пойдет на реакцию
Автор ответа: 99778787878787
0
а решение?
Автор ответа: NASTUHA6
0
126 г азотной кислоты это 126/63 = 2 моля
А дальше решение зависит от того, какой оксид взят
Напишите уравнение реакции и из него определите количество оксида
Например, если взять оксид меди
СuO +2HNO3 => Cu(NO3)2 + H2O
на два моля азлтной кислоты пойдет 1 моль оксида меди, молярная масса которого равна 64+16 = 80
Значит масса оксида равна 80 г
Автор ответа: NASTUHA6
0
значит 126/80=1,575
Автор ответа: NASTUHA6
0
1,575*240=378
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