Identify the solute and solvent
Determine the temperature and pressure conditions
Find the maximum amount of solute that dissolves in a given amount of solvent at those conditions
Express solubility in the required units, such as g/100 mL, mol/L, or g/L
Use a solubility curve, table, or experimental data if available
If using mass data, calculate solubility as mass of solute divided by mass or volume of solvent
If using molarity, calculate moles of dissolved solute per liter of solution
If using saturation data, use the concentration at equilibrium when no more solute dissolves
Adjust for temperature changes if the solubility depends on temperature
Adjust for pressure changes if the solute is a gas
Compare the calculated value with known solubility limits to confirm whether the solution is saturated, unsaturated, or supersaturated