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The number of molecules in 22.4dm^(3) of...

The number of molecules in `22.4dm^(3)` of nitrogen gas at STP is _____

A

`6.022xx10^(20)`

B

`6.022xx10^(23)`

C

`22.4xx10^(20)`

D

`22.4xx10^(23)`

Text Solution

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The correct Answer is:
B
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TARGET PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-CRITICAL THINKING
  1. Mass of 1 atom of Hydrogen is -

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  2. 1gm-atom of nitrogen may represent:

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  3. The number of molecules in 22.4dm^(3) of nitrogen gas at STP is

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  4. How many moles of electrons weigh one kilogram? (Mass of electron =9...

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  5. Which of the following has maximum number of atoms?

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  6. The number of sulphur atoms present in 0.2 moles of S(8) molecules is

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  7. What will be the volume of CO(2) at NTP obtained on heating 10 grams o...

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  8. If two compounds have the same empirical formula but different molecul...

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  9. The pair of species having same percentage of carbon is:

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  10. The percentage of nitrogen in urea is about:

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  11. Two elements X (Atomic mass 75) and Y (Atomic mass 12) combine to give...

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  12. The empirical formula of a compound is CH. Its molecular weight is 78....

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  13. The empirical formula of a compound is CH(2)O. 0.0835 moles of the com...

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  14. Calculate the number of moles of methane required to produce 33 g of c...

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  15. 27 g of Al will react completely with…… g of O(2)

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  16. The volume of ammonia obtained by the combination of 10 mL of N(2) and...

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  17. What mass of CaO will be obtained by heating 3 mole of CaCO(3)? [Atomi...

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  18. 3.0 g of H(2) react with 29.0 g O(2) to yield H(2)O (i) What is the ...

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  19. Which of the following is a compound?

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  20. Two elements A and B combine chemically to from compounds combinin...

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