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.
-}}
-{{rev5|
+:''Note'': Amount of substance has historically been referred to as number of moles.
-Mass of of a compound.
+|rel=
+|ref={{gb}}
-Note: 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 from isotope-averaged atomic masses for the constituent elements.
+P. Price. J. Am. Soc. Mass Spectrom. 2, 336 (1991). (http://dx.doi.org/10.1016/1044-0305(91)80025-3 )
-|
-#[[Gold Book]]
 }}