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What is Van't Hoff factor ?...

What is Van't Hoff factor ?

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Vant.s Hoff factor is the ratio of the experimentally determined value of colligative property to the normal value of that property. It is represented by i.
`i=("Observed colligative property")/("Normal colligative property")`
i = 1, solute behaves normally in solution.
`igt1`, solute undergoes dissociation in solution.
`ilt1`, solute undergoes association in solution.
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What mass of NaCl must be dissolved in 65.0 g of water to lower the freezing point of water by 7.50^@C ? The freezing point depression constant (k_f) for water is 1.86^@C/m . Assume that Van't Hoff factor for NaCl is 1.87. (Molar mass of NaCl =58.5g).

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OMEGA PUBLICATION-SOLUTIONS-Multiple Choice Questions
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  8. In a mixture, A and B compounds show negative deviation as

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  9. Which of the following liquid pair shows positive deviation from Raoul...

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  10. If liquid A and B form an ideal solution

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  11. Which of the following is not correct for ideal solution?

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  12. Very dilute solutions which show deviations (positive or negative) fro...

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  13. Colligative properties of solutions are those which depend upon

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  14. Which of the following is a colligative property?

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  15. Which of the following is not a colligative property?t

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  17. The molecular mass of a solute cannot be calculated by one of the foll...

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  18. Which of the following is correctly matched ?

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  19. If the elevation in boiling point of a solution of 10 gm of solute (mo...

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  20. Molal depression constant is calculated from the enthalpy of fusion (D...

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  21. The depression in freezing point is directly proportional to

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