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Nominal mass

The nominal mass is the integer mass of the most abundant naturally occurring stable isotope of an element. The nominal mass of a molecule is the sum of the nominal masses of the elements in its empirical formula.[1]

H2O = 18

See also


  1. ^ Yergey, James; David Heller, Gordon Hansen, Robert J. Cotter, and Catherlne Fenselau (1983). "Isotopic distributions in mass spectra of large molecules" (PDF). Analytical Chemistry 55: 353-356. Retrieved on 2007-09-04.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Nominal_mass". A list of authors is available in Wikipedia.
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