What is Van't Hoff factor ?

What is Van't Hoffs factor 'i' and how is it related to 'alpha' in the case of a binary electrolyte (1 : 1) ?

What is Van’t Hoff’s factor?

What is the Van't Hoff factor for sodium phosphate ?

What is the Van't Hoff factor for sodium phosphate ?

The experimental value for the molar mass of a non-volatile solute is twice the theoretical value. What is the Van't Hoff factor for the solute?

Van't Hoff factor(i):

Under what conditions Van't Hoff factor , i is eaual to unity

Under what conditions Van't Hoff factor , i less than one

Under what conditions Van't Hoff factor , i more than one