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empirical formula

   Also found in: Medical, Legal, Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
empirical formula
n.
A chemical formula that indicates the relative proportions of the elements in a molecule rather than the actual number of atoms of the elements.
empirical formula
n
1. (Chemistry) a chemical formula indicating the proportion of each element present in a molecule C6H12O6 is the molecular formula of sucrose whereas CH2O is its empirical formula Compare molecular formula, structural formula
2. (Physics / General Physics) a formula or expression obtained from experimental data rather than theory
empirical formula
A chemical formula that indicates the relative proportions of the elements in a molecule rather than the actual number of atoms of the elements. The empirical formula of a compound may be simpler than its molecular formula, which is a multiple of the empirical formula. For example, glucose has the molecular formula C6H12O6 but the empirical formula CH2O. Compare molecular formulastructural formula
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.empirical formula - a chemical formula showing the ratio of elements in a compound rather than the total number of atoms
chemical formula, formula - a representation of a substance using symbols for its constituent elements


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Mid range values were used to represent data that was given in ranges rather than specific figures, and empirical formulas were used to calculate values when data was not available for a particular fault.
National Institute of Advanced Industrial Science and Technology ... by JCNN News Summaries
An empirical formula that can be used to estimate the losses to the structure is as follows:
Effectively cooling molding sands by Modern Casting
In General information section, the following data are displayed: name, CAS #, IUPAC name, Common name, Common synonym, Acronym, Empirical formula, Molecular weight, Chemical category, Mixture, Product contents, Moisture content, Silicone content, and EC number.
More That 600 Additives Are Accommodated For Inside The Database Of ... by Business Wire
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