Densities of Electrolytes: Outputs

The following quantities are printed in the marked results box on the input page.

• Density: in grams per cm³ of solution.
• Concentrations: the molalities (mol kg⁻¹), molarities (mol dm⁻³), and weight percentages of all solutes present in solution.
• Apparent molar volume: this quantity (V^φ, in cm³ per mol) is the apparent contribution of the solute(s) to the volume of the solution, based on the assumption that the solvent contribution per mole is the same as in the pure liquid solvent. For mixtures the apparent molar volume is the volume per mole of total solutes.
• Partial molar volumes: this quantity (in cm³ per mol) is the differential of the molar volume of the solution with respect to the component of interest. It is calculated for water and for all the solutes. Partial molar volumes are required in the Kelvin equation to calculate the effects of surface curvature on equilibrium vapour pressures.