Вычислить массу сульфата алюминия, если в реакцию с серной кислотой вступило 2.7г алюминия.ПОДРОБНОЕ РЕШЕНИЕ

Вычислить массу сульфата алюминия, если в реакцию с серной кислотой вступило 2.7г алюминия.
ПОДРОБНОЕ РЕШЕНИЕ
- Предмет:
  Химия
- Автор:
  minnie82
- 5 лет назад

Ответы 2

Спасибо
- Автор:
  jazmyngvr9
- 5 лет назад
- 0
Дано:
m(Al)=2.7 г
m(Al2(SO4)3)-?
Решение:
Ур-е реакции:
2Al + 3H2SO4 -> Al2(SO4)3 + 3H2
Найдем кол-во алюминия:
n(Al)=2.7/27=0.1 моль
По ур-ю:
n(Al2(SO4)3)=1/2n(Al)=0.05 моль
Найдем массу сульфата алюминия:
m(Al2(SO4)3)=0.05×342=17.1 г
Ответ: 17.1 г
- Автор:
  enriquestone
- 5 лет назад
- 0
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Вычислить массу сульфата алюминия, если в реакцию с серной кислотой вступило 2.7г алюминия.ПОДРОБНОЕ РЕШЕНИЕ

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Вычислить массу сульфата алюминия, если в реакцию с серной кислотой вступило 2.7г алюминия.
ПОДРОБНОЕ РЕШЕНИЕ