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Calculate the molar mass of the followin...

Calculate the molar mass of the following compounds.
(i) Urea `[CO(NH_2)_2]`

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(i) Urea `[CO(NH_2)_2]` :
`{:(C:1xx12.01=12.01),(O:1xx16 " "=16.00),(N:2xx14.01 =28.02),(H:4xx1.01=underline4.04),(" "underline60.07"g mol"^(-1)):}`
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SURA PUBLICATION-BASIC CONCEPTS OF CHEMISTRY AND CHEMICAL CALCULATIONS-EVALUATION (II.WRITE BRIEF ANSWER TO THE FOLLOWING QUESTIONS)
  1. What do you understand by the term oxidation number?

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  2. Distinguish between oxidation and reduction

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  3. Calculate the molar mass of the following compounds. (i) Urea [CO(NH...

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  4. Calculate the molar mass of the following compounds. (ii) Acetone [C...

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  5. Calculate the molar mass of the following compounds. (iii) Boric aci...

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  6. Calculate the molar mass of the following compounds. (iv) Sulphuric ...

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  7. The density of carbon dioxide is equal to 1.965 kg m^(-3) at 273 K and...

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  8. Which contains the greatest number of moles of oxygen atoms (i) 1 mol ...

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  9. Calculate the number of moles in the following . (ii) 4.66 mg of silic...

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  10. Calculate the number of moles in the following . (iii) 65.6 mg of oxyg...

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  11. Calculate the average atomic mass of naturally occurring magnesium usi...

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  12. In a traction x+y + z(2)to xyz(2), Identity the limiting reagent If ti...

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  13. Mass of one atom of an element is 6.645xx10^(-23)g. How many moles of ...

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  14. (a) Define atomic mass unit. (b) Distinguish between molecular mass ...

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  15. What is the empirical formula of the following ? (i) Fructose (C(6)...

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  16. Equivalent Mass The eqivalent mass of a substance is defined as the ...

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  17. Equivalent Mass The eqivalent mass of a substance is defined as the ...

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  18. How many moles of ethane is equaired to produce 44 g of CO(2(g)) after...

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  19. Hydrogen peroxide is an oxidising agent. It oxidises ferrous ion to fe...

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  20. Calculate the empirical and molecular formula of a compound containing...

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