Answer 1

The van’t Hoff factor is related to degree of ionization as follows:

i = 1 + α (n – 1)

or

α = `("i" - 1)/("n" - 1)`

where, α = Degree of ionization/dissociation

i = van’t Hoff factor

n = Moles of ions obtained from ionization of 1 mole of electrolyte.