Question
Sat January 05, 2013 By: Akhil Mohan
 

what is vant hoff factor and how to determine if we have to use it or not in a question?

Expert Reply
Sat January 05, 2013

It is the fraction of the total number of molecules, which dissociate into simpler ions i.e.,

If a molecule of an electrolyte when dissolved in a solvent dissociates to give n ions and a is the degree of dissociation and  Van't Hoff factor = i then

n = Number of ions provided by one formula unit.

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