Use this chemistry calculator to reproduce a named relationship with explicit quantities and units for study, laboratory planning, or an independent numerical check.

i factor

van't Hoff factor: particles produced per dissolved unit.

Molality (mol/kg)

Molality of the solution.

Compute solution osmolality as the van't Hoff factor times molality. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Osmolality (osmol/kg)

Osmolality in osmoles per kilogram.

• Concentration conversions require an unambiguous amount basis, solution volume, density, purity, and temperature. Volumes may not be additive, and molarity, molality, formality, equivalents, and mass fraction are not interchangeable.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check units and significant figures, compare the result with limiting cases, and use measured or source-specific constants where available. Laboratory, safety, and regulatory decisions require validated methods and appropriate uncertainty analysis.

• Osmolarity Calculator

  Compute solution osmolarity as the van't Hoff factor times molarity.

• Boiling Point Elevation

  Estimate boiling point elevation from molality, the ebullioscopic constant, and the van 't Hoff factor.

• Freezing Point Depression

  Estimate freezing point depression from molality, the cryoscopic constant, and the van 't Hoff factor.