Какую массу цинка нужно взять чтобы получить 20 г водорода при взаимодействии цинка и серной - №31790888

Какую массу цинка нужно взять чтобы получить 20 г водорода при взаимодействии цинка и серной кислоты
- Предмет:
  Химия
- Автор:
  kamora
- 5 лет назад

Ответы 1

Zn+H2SO4=ZnSO4+H2
n(H2)=5.6/22.4=0.25моль
m(Zn)=0,25*65=16,5г
- Автор:
  muffinlam
- 5 лет назад
- 0
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