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What do you understand by the terms empi...

What do you understand by the terms empirical formula and molecular formula?

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FULL MARKS-BASIC CONCEPTS OF CHEMISTRY AND CHEMICAL CALCULATIONS -Additional Questions Solved(2-Mark Questions)
  1. Calculate the equivalent mass of barium hydroxide.

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  2. Calculate the equivalent mass of hydrated sodium carbonate.

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  3. What do you understand by the terms empirical formula and molecular fo...

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  4. Boric acid, H3 BO3 is a mild antiseptic and is often used as an eye wa...

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  5. A compound contains 50% of X (atomic mass 10)and 50% Y (atomic mass 2...

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  6. Calculate the mass of sodium (in kg) present in 95 kg of a crude sampl...

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  7. Define matter. What are the types of matter?

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  8. Prove that states of matter are interconvertible.

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  9. What is meant by Plasma state? Give an example.

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  10. Differentiate an element and an atom

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  11. Distinguish between a molecule and a compound.

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  12. Chlorine has fractional average atomic mass. Justify this statement.

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  13. Define molecular mass of a substance.

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  14. Relative molarcular mass of sulphuric acid is .

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  15. Define the avogadro's number :

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  16. The number of moles of ethane in 60 g is

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  17. Calculate the equivalent mass of Copper. (Atomic mass of copper = 63.5...

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  18. Calculate the equivalent mass of (i) Sulphate ion (ii) Phosphate ion.

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  19. Calculate the equivalent mass of H(2) SO(4) .

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  20. How many moles of hydrogen is required to produce 20 moles of ammonia?

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