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Avagadro's number of helium weight how m...

Avagadro's number of helium weight how many grams ?

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MBD PUBLICATION-BASIC CONCEPT OF THEORY-QUESTION BANK
  1. What is the volume of 17.75 g of chlorine at NTP ?

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  2. How many molecules of oxygen are present in one mole of sulphuric acid...

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  3. Avagadro's number of helium weight how many grams ?

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  4. How many moles of hydrogen molecules are there in one mole of hydrogen...

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  5. What is the molar volume of 2 grams of hydrogen gas at NTP taking the ...

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  6. One mole of CO2 contains

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  7. What is the value of Avogadro's number ?

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  8. If 5.6 litere of a gas at NTP weights 8.25 g its vapour density ?

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  9. 8 gm of oxygen occupies - litre at NTP.

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  10. What is the value of GMV at NTP.

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  11. Balance the following equation : NaCl + H2SO4 rarr Na2SO4 + HCl

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  12. Balance the following equation : FeS2 + O2 rarr Fe2O3 + SO2

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  13. Balance the following equation : Cu+HNO3 rarr Cu(No3)2 + H2O +NO

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  14. Balance the following equation : Al + Fe3O4 rarr Al2O3 + Fe

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  15. Which of the following elements shows variable valency ? What are thos...

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  16. Write down the chemical formulae of the following compounds : Alumini...

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  17. What is the formula of lead nitrate ?

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  18. How many atoms are present in a molecule of white phosphorus?

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  19. Write down the chemical formulae of the following compounds : alumini...

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  20. How many atoms of oxygen are present in 4.4 gm of CO2 at NTP ?

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