What is the significant of van't Hoff factor ?

Explanation

Van.t Hoff factor is a factor that shows the extent of dissociation or association of solute particles in solution.
i= (Normal molar mass of the solute )/(Observed molar mass of the solute)
For solute that are non-electrolytes, i=1
For solutes that dissociates, `i gt 1`
For solutes that undergo association, `i lt 1`