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What is van't Hoff factor?...

What is van't Hoff factor?

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Van't Hoff factor (i)`=("Observed colligative property")/("Calculated colligative property")`
van't Hoff factor (i) gives the extent of dissociation or association of solute in a given solvent.
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What is the van't Hoff factor of acetic acid when it dimirises in benzene.

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What is the van't Hoff factor of a completely ionised aqueous solution of (i) NaCl (ii) KCl (iii) MgSO_(4) (iv) K_(2)SO_(4) .

Under what conditions van't Hoff factor i is (i) Greater than 1 (ii) Less than 1 (iii) equal to 1.

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The electrolyte solutions show abnormal colligative porperties.To account for this effect we define a quantity called the Van't Hoff factor given by i=("Actual number of particles in solution after dissociation")/("Number of formula units initially dissolved in solution") i=1 ("for non-electrolytes") igt1 ("for electrolytes, undergoing dissociation") ilt1 ("for solutes, undergoing association") Answer the following questions: 0.1 M K_(4)[Fe(CN)_(6)] is 60% ionized. What will be its Van't Hoff factor?

The degree of dissociation (alpha) of a weak electrolyte, A_(x)B_(y) is related to van't Hoff factor (i) by the expression :

SUBHASH PUBLICATION-SOLUTIONS-PROBLEM SECTION
  1. What is van't Hoff factor?

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  2. The vapour pressure of pure benzene at certain temperature is 0.850 ba...

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  3. 5.8 g of non - volatile, non - electrolyte solute was dissolved in 100...

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  4. Vapour pressure of benzene is 200 mm of Hg. When 2 gram of a non-volat...

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  5. Aqueous solution of 3% non-volatile solute exerts a pressure of 1 bar ...

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  6. On dissolving 2.34g of non-electrolyte solute in 40g of benzene, the b...

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  7. The boiling point of benzene is 353.23 K when 1.80 g of a non-volatile...

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  8. A solute containing 0.564g of solute in 36.8g of acetone boils at 56.4...

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  9. Chloroform boils at 61.7^(@)C and the solution of 6.21g of an organic...

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  10. A solution containing 18g of non - volatile non - electrolyte solute i...

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  11. 1.0 g of non - electrolyte solute dissolved in 50 g of benzene lowered...

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  12. 15 g of an unknown molecular substance was dissolved in 450 g of water...

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  13. 5% solution of a substnace in water has freezing point 269.06K. Calcul...

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  14. 200 cm^(3) of an aqueous solution of a protein contains 1.26 g of prot...

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  15. 300cm^(3) of an aqueous solution of a protein contains 2.12 g of the p...

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  16. 3 gram of non-volatile solute in a 1000 cm^(3) of water shows an osmot...

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  17. Osmotic pressure of a solution containing 7 g of a protein present in ...

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  18. The vapour pressure of ethyl alcohol at 298K is 40mm of Hg. Its mole f...

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  19. Vapour pressure of chloroform and dichloroethane at 298K are 200 mm Hg...

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  20. If 1.71 g of sugar (molar mass=342) is dissoved in 500 cm^(3) of a sol...

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  21. Vapour pressure of water at 293K is 17.535 mm Hg. Calculate the vapour...

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