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Molecular Mass
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Details
The molecular mass of a substance, frequently referred to by the older term molecular weight and abbreviated as MW, is the mass of one molecule of that substance, in unified atomic mass unit(s) u. This is distinct from the relative molecular mass of a molecule, which is the ratio of the mass of that molecule to 1/12 of the mass of carbon 12 and is a dimensionless number. Relative molecular mass is abbreviated to Mr.Molecular mass differs from more common measurements of the mass of chemicals, such as molar mass, by taking into account the isotopic composition of a molecule rather than the average isotopic distribution of many molecules. As a result, molecular mass is a more precise number than molar mass; however it is more accurate to use molar mass on bulk samples. This means that molar mass is appropriate most of the time except when dealing with single molecules.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130715137
- Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
- Genre Chemie
- EAN 9786130715137
- Format Fachbuch
- Titel Molecular Mass
- Herausgeber Alphascript Publishing
- Anzahl Seiten 68
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