Предмет: Химия, автор: anutagalkevich

Рассчитайте химическое количество и массу алюминия, который расходуется на восстановление железа из красного железняка (Fe2O3) массой 80г.

Ответы

Автор ответа: kamilakulieva

2Al + Fe2O3 = Al2O3 +2Fe
M(Fe2O3)=160 г
n(Fe2O3)=80/160=0,5 моль
n(Al)=0,5х2=1 моль, так как n(Al):n(Fe2O3)=2:1
M(Al)=27 г/моль
m(Al)=27х1=27 г

anutagalkevich: спасибо

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