Предмет: Химия, автор: alicelife

Минерал перолюзит содержит 45% оксида марганца(4). Сколько киллограм марганца можно получить из 1 тонны перолюзита?

Ответы

Автор ответа: ba73
0
В 1000 кг пиролюзита содержит 45% Оксида марганца (4).
Значит оксида марганца в тонне 1000*45/100=450 кг.
Формула оксида марганца (4): MnO2.
Атомный вес марганца 55.
Атомный вес кислорода 16.
Моль вес MnO2=55+16*2=87
Теперь считаем чистый марганец.
87 -  450 кг
55 -  х
х=55*450/87=284,48 кг.

Таким образом в 1 тонне пиролюзита содержится 284,48 кг стопроцентного марганца. Если учесть, что выделение марганца будет проходить без потерь, то это и есть ответ.

Ответ: из 1 тонны пиролюзита можно получить 284,48 кг чистого (100%) марганца.
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