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How many O(2) molecules are there in one...

How many `O_(2)` molecules are there in one mole of oxygen gas?

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`O_(2)` molecules in one mole `=6.022xx10^(23)`
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ICSE-MOLE CONCEPT AND STOICHIOMETRY-QUESTIONS FOR PRACTICE
  1. Express 144 pencils in dozen and gross.

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  2. is used to report the amount of chemical substance.

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  3. How many O(2) molecules are there in one mole of oxygen gas?

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  4. Calculate the number of CO(2) molecules in 10 moles of it.

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  5. How many N atoms are present in 0.25 mol of N(2) ?

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  6. The molecular formula of an organic acid is H(2)CO(2) What is its emp...

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  7. What is the percentage composition of Al(2)(SO(4))(3)? [R.A.M.: 0 = ...

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  8. Calculate the molecular mass and percentage composition of HgO. [R.A.M...

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  9. Calculate the mass percent of chromium in potassium dichromate K(2)Cr(...

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  10. Calculate the molecular mass of haemoglobin C(3021)H(4780)O(896)N(760)...

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  11. Calculate the percentage composition of a compound which has molecular...

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  12. Both carbon monoxide (CO) and carbon dioxide (CO(2)) are binary compou...

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  13. Both sodium sulphate (Na(2)SO(4)) and sodium sulphite (Na(2)SO(3)) are...

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  14. Determine the percentage composition of water (H(2)O) in hydrogen pero...

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  15. Which contains larger percentage of oxygen, H(2)O or N(2)O(3)?

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  16. Calculate the percentage of nitrogen in ammonium nitrate (NH(4)NO(3)) ...

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  17. What mass of sulphur is contained in 30 g of iron pyrites (FeS(2))?

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  18. What mass of sulphur is contained in 30 g of iron pyrites (Na(2)B(4)O(...

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  19. Calculate the percentage of nitrogen and oxygen in ammonium nitrate. [...

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  20. Calculate the percentage of water of crystalization in CuSO4.5H2O (H...

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