What is this Calculator For?

This calculator is designed to compute the vapor pressure of a solution using Raoult's Law. It’s useful in chemistry to understand how a solute affects the vapor pressure of a solvent.

How to Use This Calculator

• Enter the pure vapor pressure of the solvent (P₀).
• Enter the mole fraction of the solvent (x).
• The result will be automatically calculated as per Raoult’s Law.

Raoult's Law Formula

P = P₀ × x

Where:

• P is the vapor pressure of the solution.
• P₀ is the vapor pressure of the pure solvent.
• x is the mole fraction of the solvent in the solution.

Example

If the vapor pressure of pure water (P₀) is 0.85 atm and the mole fraction of water (x) in a solution is 0.7, then:

P = 0.85 × 0.7 = 0.595 atm