Molar concentration or Molarity is a measure of the concentration of a solute in a solution usually expressed as the amount of substance per unit volume.
Molar concentration or molarity is commonly expressed in unit molar i.e number of moles per liter (mol/L).
SI-derived unit of substance amount concentration is molar or moles/litre, abbreviated as (M).
We have some handy molarity converters to perform conversions.