The analytical composition of a
saturated solution, expressed in terms of the proportion of a designated solute in a designated solvent,
is the solubility of that solute. The solubility may be expressed as a concentration,
molality,
mole fraction,
mole ratio, etc.
Source:
See also:
PAC, 1990, 62, 2167
(Glossary of atmospheric chemistry terms (Recommendations 1990))
on page 2214