Предмет: Химия, автор: xadichayarmatova

Сколько грамм железа образуется при взаимодействии 1,2 кг железа с серой помогите пожалуйста срочно​

OSKOLtRAIN: у вас в условии ошибка. Может быть сколько сульфида серы образуется при взаимодействии 1,2 кг железа с серой ?

Ответы

Автор ответа: kasenovajdan1
0

Ответ:

Ответ разместил: XxXRePlayXxX

Fe2O3 + 3H2 = 2Fe + 3H2O

n(H2) = 134.4 / 67.2 = 2моль

n(Fe) : n(H2) = 2 : 3

m(Fe) = 1.3 × 56 = 74.5 г

2). 145 - 100%

х - 20%

х = 145 × 20 / = 29 г

Объяснение:

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