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The boiling point of a solution of 0.11 ...

The boiling point of a solution of 0.11 of a substance in 15g of ether was found to be `0.1^(@)C` higher than that of pure ether. The molecular weight of the substance will be `(K_(b)=2.16)` :

A

148

B

158

C

168

D

178

Text Solution

Verified by Experts

The correct Answer is:
B

`Delta T_(b)=k_(b)xx ("wt of solute")/("m.wt of solute")xx(1000)/("wt.of solvent")`
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NARAYNA-SOLUTIONS & COLLIGATIVE PROPERTIES -EXERCISE : 2 (H.W)
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  2. If the elevation in boiling point of a solution of 10 g of solute (mol...

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  3. The boiling point of a solution of 0.11 of a substance in 15g of ether...

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  5. A 5% solution (by mass) of cane sugar in water has freezing point of 2...

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  6. The depressions in freezing point for 1 M urea, 1 M glucose and 1M NaC...

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  7. (a) State Raoult law for a solution containing volatile components. ...

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  8. Assertion : Depression of freezing point is a colligative property R...

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  9. Two solutions of glucose have osmotic pressure 1.5 and 2.5 atm,respect...

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  10. The solution containing 10 g of an organic compound per litre showed a...

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  11. Calculate the osmotic pressure in pascals exerted by a solution prepar...

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  12. What is the osmotic pressure of the solution obtained by mixing 300cm^...

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  13. A solution of glucose (C(6)H(12)O(6))is isotonic with 4g of urea (NH(2...

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  14. The van't Hoff factor for 0.1 M Ba(NO(3))(2) solution is 2.74. The deg...

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  15. In case a solute associates in solution, the van't Hoff factor,

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  16. For a non-electrolytic solution, van't Hoff factor is equal to

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  17. For a very dilute aqueous solution of K(4)[Fe(CN)(6)], van't Hoff fact...

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  18. In which of the following pairs of solutions will the values of the va...

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  19. A 1.17% solution of NaCl is isotonic with 7.2% solution of glucose. Ca...

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  20. A 0.2 molal solution of KCl freezes at -0.68^(@)C. If K(f) for H(2)O i...

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