Editing Solubility (section)

===Per quantity of solvent===

In particular, chemical [[handbook]]s often express the solubility as [[gram]]s of solute per 100 [[millilitres]] of solvent (g/(100 mL), often written as g/100 ml), or as grams of solute per [[decilitre]] of solvent (g/dL); or, less commonly, as grams of solute per [[litre]] of solvent (g/L). The quantity of solvent can instead be expressed in mass, as grams of solute per 100 grams of solvent (g/(100 g), often written as g/100 g), or as grams of solute per [[kilogram]] of solvent (g/kg). The number may be expressed as a percentage in this case, and the abbreviation "w/w" may be used to indicate "weight per weight".<ref name=abler2021>Abler (2021): "[https://help.abler.com/ww-weightweight/ W/W (Weight/Weight)]". Online page at Abler Help Center. Accessed on 2021-11-26.</ref> (The values in g/L and g/kg are similar for water, but that may not be the case for other solvents.)

Alternatively, the solubility of a solute can be expressed in moles instead of mass. For example, if the quantity of solvent is given in [[kilograms]], the value is the [[molality]] of the solution (mol/kg).