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Bipin Dubey (13679)

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The van 't Hoff factor i is the number of moles of solute actually in solution per mole of solid solute added. Equivalently, i refers to the ratio of true molecular mass to calculated molecular methods by colligative methods.

When solute particles associate in solution, i < 1.
Degree of dissociation

= (i - 1)/(n - 1)

When solute particles dissociate in solution, i > 1.
Degree of dissociation

= [i - 1]/[(1/n) - 1]

Otherwise i = 1.

= 0

Best Wishes

Bipin Kumar Dubey Chemical Dept. IIT Kharagpur

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