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Calculate the volume of oxygen and nit...

Calculate the volume of oxygen and nitrogen present 250 l of air.

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The correct Answer is:
195 l, 52.5 l
Volume percentage of nitrogen in air is `78%rArr100l` of air contains 78 l of nitrogen
250 l of air contains `(78xx250)/(100)=195` l of nitrogen
Volume percentage of oxygen in air is `21%`
`rArr 100` l of air contains 21 l of oxygen
250 l of air contains `(250xx21)/(100)=52.5`l of oxygen.
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PEARSON IIT JEE FOUNDATION-AMAZING AIR-Short Answer Type Questions
  1. Write some uses of air.

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  2. Explain the importance of water vapour present in the atmosphere.

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  3. Calculate the volume of oxygen and nitrogen present 250 l of air.

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  4. Name the products formed in the following. (a) Carbon + Oxygen to...

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  5. The composition of air in terms of percentage of its varous components...

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  6. How is the balance of oxygen in atmospheric air maintained ?

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  7. Both the active component and the inactive component of play importan...

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  8. Gas X si the heaviest component of natural air. (a) Identify...

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  9. The mountaineers carry oxygen gas cylinders with them while climbing h...

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  10. Thought air contains only about 0.03% of carbon dioxide , it is a very...

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  11. The following two experiments are conducted to prove the release of ca...

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  12. What is the process, in which antibody comes in contact with antigen a...

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  13. (a) Identify the mistakes (s) in the diagrams and give justification....

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  14. (a) Write the chemical name of the substance taken in the test tube. ...

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  15. Can an empty bottle be filled with water , when it is inverted into a ...

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  16. (a) Mention the substance used in white washing. (b) State the r...

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  17. Answer the following questions based on the diagram given. (a...

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  18. GLOBAL WARMING

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  19. What is air pollution?

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  20. Mention the effects of acid rain .

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