(chemistry) the amount of some substance added to a volume divided by that volume, regardless of whether any of the substance has reacted to become something else
Den formelle koncentration af natriumhydroxid i denne flaske er 0,100 M, men den aktuelle koncentration er naturligvis 0 M, da al natriumhydroxiden er gået på ionform.
The ? of sodium hydroxide in this bottle is 0.100 M, but the ? is, of course, 0 M, as all the sodium hydroxide has dissociated into its constituent ions.
