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Calculate the molal depression constant ...

Calculate the molal depression constant of a solvent which has freezing point `16.6^(@)C` and latent heat of fusion `180.75 "J g"^(-1)` :

A

2.68

B

3.86

C

4.68

D

2.86

Text Solution

Verified by Experts

The correct Answer is:
B
`k_(f)=(R.T_(f)^(2))/(1000xxL_(f))=(8.314xx(289.6)^(2))/(1000xx180.75)=3.86`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SOLUTIONS AND COLLIGATIVE PROPERTIES -Exercise 1 (Types of Solutions and Concentration of Solutions)
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  2. At 25^(@)C, the highest osmotic pressure is exhibited by 0.1 M solutio...

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  3. Calculate the molal depression constant of a solvent which has freezin...

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  4. The freezing point of 1% of lead nitrate solution in water will be :

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  5. The relative lowering of vapour pressure of an aqueous solution contai...

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  6. KBr is 180% dissociated in aqueous solution of 0.5m concentration. (...

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  7. The vapour pressure of water at 23^(@)C is 19.8 mm of Hg 0.1 mol of gl...

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  8. Benzoic acid is dissolved in benzene, van't Hoff factor will be

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  9. Mark the correct option for the K(f) . I. K(f) depends on nature of...

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  10. Osmotic pressure present in the fluid inside the blood cell is equival...

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  11. Match the laws given in Column I with expressions given in Column II. ...

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  12. Lowering of vapour pressure is highest for

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  13. If the elevation in boiling point of a solution of 10 g of solute (mol...

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  14. The vapour pressure of water at 20^(@)C is 17.54mm. When 20g of non - ...

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  15. The osmotic pressure of a 5% (weight// volume) solution of cane sugar...

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  16. The freezing point of 0.1 M solution of glucose is -1.86^(@)C. If an e...

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  17. At 10^(@)C, the osmotic pressure of urea solution is 500 mm.The soluti...

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  18. An aqueous solution freezes at -0.186^(@)C (K(f)=1.86^(@) ,K(b)=0.512^...

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  19. Colligative properties of a solution depends upon

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  20. In coparison to a 0.01 M solution of glucose, the depression in freezi...

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