Molar mass: Difference between revisions

Latest revision as of 22:14, 6 January 2014

Molar mass M
IUPAC RECOMMENDATIONS 2013
Mass of an element or chemical compound divided by its amount of substance. Note: Amount of substance has historically been referred to as number of moles.
Related Term(s):
Reference(s): IUPAC. Compendium of Chemical Terminology, 2nd ed. (the Gold Book). Compiled by A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. P. Price. J. Am. Soc. Mass Spectrom. 2, 336 (1991). (http://dx.doi.org/10.1016/1044-0305(91)80025-3 )
From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.
Index of Recommended Terms

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-{{def2|
+{{Final
-Mass of one mole (6.022 1415(10) x 1023 atoms or molecules) of a compound.
+|acronym=''M''
+|def=Mass of an element or chemical compound divided by its [[wikipedia:amount of substance|amount of substance]].
-Note:  The term [[molecular weight]] is deprecated because "weight" is the gravitational force on an object that varies with geographical location.  Historically the term has been used to denote the molar mass calculated using isotope-averaged atomic masses for the constituent elements.
+:''Note'': Amount of substance has historically been referred to as number of moles.
+|rel=
+|ref={{gb}}
+P. Price. J. Am. Soc. Mass Spectrom. 2, 336 (1991). (http://dx.doi.org/10.1016/1044-0305(91)80025-3 )
 }}