DATA ANALYSIS PACKAGE SYMBOL

# MassFractionToMolality

MassFractionToMolality[<|comp_{1}mass_{1},comp_{2}mass_{2},...|>,prefix]

converts mass fractions in an association where the keys are the component names (which can be suffixed by ' / ppm', etc.) and values are the mass fractions to molalities with the specified unit prefix (m,μ,n,p), which is optional.

MassFractionToMolality[mass,comp]

converts a mass fractions of a component to molality assuming that it is the only solute.

- The molality is the molar amount of a substance per mass of the solvent.
- Accurate molalities can only be calculated if all solutes of a compound are defined.
- Components have to be defined using RegisterOxide or RegisterComp.
- Valid suffixes are %, ppm, ppb, ppt, and ppq.
- Valid prefixes for molalities are m, μ, n, p for milli, micro, nano, and pico molalities.

Calculate the molalities for a simple compound:

The calculated molality is slightly different if a solute is not defined:

Use suffixes for mass fractions:

Use prefixes for molalities: