какой объем кислорода образуется при полном разложении 120 г пероксида водорода? - Знания.site

какой объем кислорода образуется при полном разложении 120 г пероксида водорода?
- Предмет:
  Химия
- Автор:
  parsons
- 4 года назад

Ответы 1

n(H2O2)=120/34=3.53 моль2H2O2=2H20+O2n(O2)=3.53/2=1.8v(O2)=1.8*22.4=39.5 дм3
- Автор:
  darlingi6ld
- 1 год назад
- 10
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One day in 1777 Josefh Montgolfier was relaxing in front of the fire with his laundry drying nearby.after a wrhile he noticed that one of his shirts had started to float upwarda.the toung man was curious abot what was happening so he thew some small pieces of paper into the fireplace to see it the same thing happened to them.when he saw them .when he saw them coming out of the chimney he came the conclusion that smoke had the power to lift things up and carry them through the air.Joseph loved science and wanted to become an inventor so he started thying to think of a craft that would be able to capture smoke and lift people off the ground.Alond with his brother Jacques he began perfoming experiments on something that later became the first hot-air balloon.
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