Insert the information in the form and the calculator will determine the osmotic pressure.

What is the osmotic pressure?

Osmotic pressure is the minimum pressure which needs to be applied to a solution in order to prevent the inward flow of it's pure solvent across a semipermeable memebrane.

How to calculate osmotic pressure?

To calculate osmotic pressure you should use the following formula:
II = i * c * R * T
where:
II = osmotic pressure
i = Van't Hoff index
c = molar concentration of solute
R = ideal gas constant
T = temperature in Kelvin

Why use osmotic pressure?

The osmotic pressure is used in order to measure the molecular weights of compounds it is also used in the desalination and purification of sea water.