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The number of molecules in one litre of ...

The number of molecules in one litre of air at STP is

A

`(6.02 xx 10^(23))/(32)`

B

`(6.02 xx 10^(23))/(22.4)`

C

`32 xx 22.4`

D

`(32)/(22.4)`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-STOICHIOMETRY-Objective Exercise -1
  1. The molar mass of hydrogen is

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  2. One mole of atoms of oxygen represents

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  3. The number of molecules in one litre of air at STP is

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  4. Which of the following contains the least number of molecules ?

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  5. Air contains nitrogen and oxygen in the volume ratio of 4:1. The avera...

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  6. The number of gram atoms of hydrogen present in 1.5 mole of hydrogen s...

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  7. One mole of molecules of dioxygen represents

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  8. One mole of sodium represents

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  9. The charge present on 1 mole electronsis

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  10. The weight of 0.1 mole of Na(2)CO(3) is

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  11. The molar mass of a substance is 20g. The molecular mass of the substa...

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  12. Avogadro number of helium atoms have a mass of

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  13. The volume of two moles of oxygen at STP

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  14. The following property of a gas does not vary with pressure and temper...

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  15. The ratio between the number of molecules in equal masses of nitrogen ...

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  16. The gas which is twice as dense as oxygen under the same conditions is

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  17. 1 mole of water vapour is condensed to liquid at 25^(@)C. Now this wat...

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  18. A chemical equation is always balanced with respect which one of the f...

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  19. Which of the following has highest mass?

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  20. 1 gram of hydrogen contains6xx10^(23) atoms. Then 4 grams of He contai...

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