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What do you mean by empirical formula an...

What do you mean by empirical formula and molecular formula of a compound? Under what conditions, the molecular formula of a compound becomes identical with its empirical formula?

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CHHAYA PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-WARM UP EXERCISE
  1. Show that the volume of 1 gram-molecule of any gas at 273K temperature...

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  2. Calculate the volume occupied by 1 molecule of any gaseous substance a...

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  3. Choose the correct options: The vapour density of carbon dioxide is -(...

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  4. Discus the effect of pressure and temperature on the vapour density of...

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  5. Carbon dioxide decomposes to form its own volume of oxygen. Find the m...

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  6. Under same conditions of temperature and pressure the vapour density o...

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  7. The equivalent mass of an element can never be zero-explain.

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  8. Establish the relation between equivalent mass and atomic mass of an e...

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  9. Calculate the equivalent weight of sulphate ion.

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  10. Calculate the equivalent weight of ferrous sulphate [when Fe^(2+) unde...

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  11. Prove that the equivalent mass of an element varies inversely with its...

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  12. Sodium thiosulphate is oxidised by iodine to sodium tetrathionate. Cal...

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  13. What do you mean by empirical formula and molecular formula of a compo...

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  14. Calculate the percentage composition (by mass) of the constituent elem...

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  15. An oxide of iron is found to contain 69.9% iron and 30.1% dioxygen (O(...

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  16. Calculate the amount of sodium hydroxide present in 100 mL of 0.1(M) N...

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  17. Molarity and normality of a solution change with temperature but molal...

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  18. 100 mL of 3(N) Na(2)CO(3) solution is diluted to 300 mL by adding wate...

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  19. Find the volume (in mL) of 0.2 (N) NaOH solution required to neutralis...

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  20. Give the relation between normality & molarity of a solution.

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