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What weight of the non-volatile solute u...

What weight of the non-volatile solute urea needs to be dissolved in 100 g of water, in order to decrease the vapour pressure of water by 25% ? What will be the molality of the solution.

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The correct Answer is:
111.1 gm, 18.52 m
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MOTION-LIQUID SOLUTION-EXERCISE-3 SUBJECTIVE JEE ADVANCED
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  2. The degree of dissociation of Ca(NO(3))(2) in a dilute aqueous solutio...

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  3. What weight of the non-volatile solute urea needs to be dissolved in 1...

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  4. The vapour pressure of an aqueous solution of glucose is 750 mm of Hg ...

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  5. Barium ion , CN^(-) and Co^(2+) form an ionic complex . If that comple...

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  6. If pK(a)=-"log"K(a)=4, and K(a)=Cx^(2-) then Van't Hoff factor for wea...

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  7. pH of 1M HA (weak acid) is 2. Hence van't Hoff factor is -

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  8. (a) A solution containing 0.5g of naphithalene in 50g C Cl(4) yield a ...

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  9. The boiling point of a solution of 5g of sulphur in 100g of carbon dis...

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  10. The vapour pressure of fluorobenzene at t^(@) C is given by the equati...

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  11. When 10.6 g of a nonvolatile substance is dissolved in 740 f of ether,...

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  12. A solution containing 3.24 g of a nonvolatile nonelectrolyte and 200 g...

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  13. An aqueous solution of a non-volatile solute boils at 100.17^(@)C. At ...

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  14. Calculate the molal elevation constant , "K"("b") for water and the bo...

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  15. 2 g of benzoic acid (C(6)H(5)COOH) dissolved in 25g of benzene shows a...

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  16. The freezing point of solution containing 0.2 g of acetic acid in 20.0...

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  17. Calculate the amount of ice that will separate out on cooling a soluti...

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  18. The osmotic pressure at 17^(@)C of aqueous solution containing 1.75g o...

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  19. The osmotic pressure of blood is 7.65 atm at 37^(@)"C". How much gluco...

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

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