What is the Raoult’s Law Calculator?

The Raoult’s Law Calculator determines the vapor pressure of a solution based on the mole fraction of the solvent and the vapor pressure of the pure solvent, using the formula P = X_solvent × P°. By entering the mole fraction and the pure solvent vapor pressure, the calculator instantly computes the solution’s vapor pressure in atm. This tool is helpful for chemistry students, teachers, and laboratory users to understand colligative properties, analyze solution behavior, and predict vapor pressures for different solvent-solute combinations.

How to Use:

1. Enter Mole Fraction of Solvent (X_solvent): Provide a value between 0 and 1 representing the mole fraction of the solvent.
2. Enter Vapor Pressure of Pure Solvent (P°): Type the vapor pressure of the pure solvent in atm.
3. Click “Calculate”: The calculator applies P = X_solvent × P° to determine the vapor pressure of the solution.
4. Review the Result: Use the displayed vapor pressure to analyze solution properties, plan experiments, or verify chemistry calculations.