molar concentration vs molarity

molar concentration and molarity both are nouns.

Word	Noun	Adjective	Verb	Adverb
molar concentration	Yes	No	No	No
molarity	Yes	No	No	No

As nouns, molar concentration and molarity are synonyms defined as:

molar concentration and molarity: concentration measured by the number of moles of solute per liter of solution

Other synonyms of molar concentration include M.

molar concentration (noun)	molarity (noun)
concentration measured by the number of moles of solute per liter of solution	concentration measured by the number of moles of solute per liter of solution