molära

Molära is an adjective used in Swedish-language chemistry to describe topics related to molarity, the measure of a solution’s concentration defined as the amount of solute in moles per liter of solution. The term is less common in contemporary texts than the closely related form molär or molär koncentration, but it appears in some regional and older writings as a way to reference molarity-related properties, quantities, or notations.

Usage and scope

Molära is used to modify nouns that pertain to molarity, such as molära koncentration, molära lösning, or molära mängd. The standard international notation for molarity is the symbol M, with units of moles per liter (mol/L). For example, a molära concentration of 0.5 mol/L is often written as 0.5 M.

Relation to other concepts

Molära relates specifically to molarity, in contrast to molal concentration (m, moles per kilogram of solvent) and normality (equivalents per liter). Unlike molality, molarity is temperature-dependent because it depends on the solution’s volume, which can vary with temperature.

Etymology and usage notes

The word molära draws on the root mole and a Swedish adjective-forming pattern, paralleling other Swedish terms for concentration. In modern Swedish technical writing, many texts prefer molär koncentration or simply express concentration with the symbol M rather than relying on the standalone adjective molära. Despite this, molära remains recognizable in some sources as an occasional descriptor of molarity-related concepts.

See also

Molarity, Molality, Normality, Concentration, Solution chemistry.