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Hasil cari dari kata atau frase: Empirical formula(0.02092 detik)
Found 2 items, similar to Empirical formula.
English → English (WordNet)
Definition: empirical formula
n : a chemical formula showing the ratio of elements in a
compound rather than the total number of atoms
English → English (gcide)
Definition: Empirical formula
Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
2. (Eccl.) A written confession of faith; a formal statement
3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
4. (Med.) A prescription or recipe for the preparation of a
5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
Empiric \Em*pir"ic\, Empirical \Em*pir"ic*al\, a.
1. Pertaining to, or founded upon, experiment or experience;
depending upon the observation of phenomena; versed in
In philosophical language, the term empirical means
simply what belongs to or is the product of
experience or observation. --Sir W.
The village carpenter . . . lays out his work by
empirical rules learnt in his apprenticeship. --H.
2. Depending upon experience or observation alone, without
due regard to science and theory; -- said especially of
medical practice, remedies, etc.; wanting in science and
deep insight; as, empiric skill, remedies.
Empirical formula. (Chem.) See under Formula.
Syn: See Transcendental.