Empirical-formula meaning

A chemical formula that indicates the relative proportions of the elements in a molecule rather than the actual number of atoms of the elements.
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A chemical formula which gives the composition of elements in a molecule in their lowest relative proportions but does not specify the structural arrangement or true molecular weight (Ex.: CH for benzene or acetylene)
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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 C6 H12 O6 but the empirical formula CH2 O.
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(chemistry) A notation indicating the ratios of the various elements present in a compound, without regard to the actual numbers.

The molecular formula for ethane is C2H6, while the empirical formula is CH3.

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Empirical-formula Sentence Examples

  • The values are for the Ha line: The empirical formula (n2-I)/(n2-1-o 4)d apparently gives more constant values with change of temperature than the LorenzLorentz form.

  • The smallest empirical formula for cellulose (q.v.) may certainly be written C6H1005.

  • In any region of velocity where it is possible to represent p with sufficient accuracy by an empirical formula composed of a single power of v, say v m, the integration can be effected which replaces the summation in (to), (16), and (24); and from an analysis of the Krupp experiments Colonel Zabudski found the most appropriate index m in a region of velocity as given in the following table, and the corresponding value of gp, denoted by f (v)or v m lk or its equivalent Cr, where r is the retardation.

  • Three acids of this empirical formula are known, viz.

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