Предмет: Химия, автор: Tem12345

Вычислите массу сульфида железа 2, образующегося при взаимодействии 2,8 г железа с избытком серы.
С дано и решением пожалуйста!!!

Ответы

Автор ответа: svetka1574
0
   2,8 г                                             Х г
    Fe             +             S       ->      FeS
n=1 моль                                         n=1 моль
М = 56 г/моль                                 М = 88 г/моль
m=56 г                                            m=88 г

2,8 г Fe    -     Х г FeS
56 г Fe     -   88 г FeS
m(FeS) = 2,8 * 88 / 56 = 4,4 г

Дано:
m(Fe) = 2,8 г
М(Fe) = 56 г/моль
М(FeS) = 88 г/моль
Найти:
m(FeS)
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