Boiling point elevation and osmotic pressure are not only proportional to it, they depend on it.
The theoretical value of it does not equal the experimental value but rather the limit of the experimental value as the concentration goes to zero. Ion pairing explains why it decreases as the concentration of a solution increases. Boiling point elevation and osmotic pressure are not only proportional to it, they depend on it. FTP, identify this factor named after the 1901 Nobel Prize winner in Chemistry, usually denoted i, the measure of disassociation of a compound.
The theoretical value of it does not equal the experimental value but rather the limit of the experimental value as the concentration goes to zero.
{Van’t Hoff} Factor