IUPAC > Gold Book > alphabetical index > M > mass-average velocity in electrolytes
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mass (weight) of the stationary phase, W s in chromatographymass-distribution function

mass-average velocity

in electrolytes

Also contains definition of: molar average velocity in electrolytes

Mass-average velocity:
v b = ρ −1 ∑ C i M i v i
Cf. molar average velocity:
v m = c t −1 ∑ c i v i
with c t = ∑ c i where M i = molar mass, c t = total concentration (mol m −1), ρ = density of the solution (kg m −3).
Source:
PAC, 1981, 53, 1827 (Nomenclature for transport phenomena in electrolytic systems) on page 1831
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Cite as:
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. ISBN 0-9678550-9-8. doi:10.1351/goldbook.
Last update: 2012-08-19; version: 2.3.2.
DOI of this term: doi:10.1351/goldbook.M03711.
Original PDF version: http://www.iupac.org/goldbook/M03711.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
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