empirical formula


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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. (General Physics) a formula or expression obtained from experimental data rather than theory

empir′ical for′mula


n.
a chemical formula showing the elements of a compound and their relative proportions, as (CH2O)n or H2O.
ThesaurusAntonymsRelated WordsSynonymsLegend:
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
Translations
References in periodicals archive ?
For the purpose of this study, Grand View Research has segmented the global XPS market on the basis of usage, application and region: Global XPS Usage Outlook (Revenue, USD Million, 2012 -- 2022) Element Detection Contamination Detection Density Estimation Empirical Formula Determination Global XPS Application Outlook (Revenue, USD Million, 2012 -- 2022) Healthcare Semiconductors Electronics Aerospace Automotives Others Global XPS Healthcare Application Outlook (Revenue, USD Million, 2012 -- 2022) Printing Packaging Others XPS Regional Outlook (Market Revenue in USD Million, 2012 -- 2022) North America U.
Furthermore, the soil investigation report recommendation is based on conservative empirical formula which has been used historically in the industry.
2013) suggested empirical formula for the stiffness calculation of bolted connections that were received from the data of natural experiments using curve-fitting software.
To obtain a description of H as a function of T, we fit a polynomial function of order six to the H(z) curve, which gives the following empirical formula for [[OMEGA].
Covering first metal complexes then transition metal chemistry, they discuss such topics as the correct empirical formula of complexes, isomerism and stereochemistry, metal carbonyls and nitrosyls, the vanadium group, and the actinides.
2% to 5% by weight, based on solids in the composition, of a bismuth subsalicylate compound having an empirical formula of C7H504Bi that is water-insoluble and pulverulent, wherein the bismuth subsalicylate has a bismuth content of from 56.
It is believed that an analytical formula is more satisfactory than an empirical formula, as it provides physical insight into the phenomenon (Gastebled, May 2001).
It is described by the empirical formula (Janciauskas, Venskus 1999):
Abbrebiation Empirical Formula Color Yield % of Schiff bases (BROM-ANIS) [C.
Each monograph includes information on nonproprietary names, synonyms, chemical name and Chemical Abstracts Service registry number, empirical formula and molecular weight, structural formula, functional category, applications in pharmaceutical formulation or technology, description, pharmacopoeial specifications, typical properties, stability and storage conditions, incompatibilities, method of manufacture, safety, handling precautions, regulatory status, related substances, specific and general references, and date of revision.
Find the most suitable empirical formula is very important because this leads to mathematical and numerical model improvement.

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