| 释义 |
molecular formula
molecular formulan. A chemical formula that shows the number and kinds of atoms in a molecule.molecular formula n (Chemistry) a chemical formula indicating the numbers and types of atoms in a molecule: H2SO4 is the molecular formula of sulphuric acid. Compare empirical formula, structural formula molec′ular for′mula
n. a chemical formula that indicates the kind and number of atoms in a molecule of a compound. [1900–05] mo·lec·u·lar formula (mə-lĕk′yə-lər) A chemical formula that shows the total number and kinds of atoms in a molecule, but not their structural arrangement. For example, the molecular formula of aspirin is C9H8O4. Compare structural formula.Thesaurus| Noun | 1. |  molecular formula - a chemical formula based on analysis and molecular weightchemical formula, formula - a representation of a substance using symbols for its constituent elementsstructural formula - an expanded molecular formula showing the arrangement of atoms within the molecule |
Translationsmolecular formula
molecular formula: see formulaformula,
in chemistry, an expression showing the chemical composition of a compound. Formulas of compounds are used in writing the equations (see chemical equations) that represent chemical reactions. Compounds are combinations in fixed proportions of the chemical elements.
..... Click the link for more information. .molecular formula[mə′lek·yə·lər ′fȯr·myə·lə] (chemistry) A chemical formula that indicates the actual numbers and kinds of atoms in a molecule, but not the chemical structure. molecular formula a chemical formula indicating the numbers and types of atoms in a molecule molecular formula
formula [for´mu-lah] (pl. formulas, for´mulae) (L.) 1. an expression, using numbers or symbols, giving the directions for preparing a compound (such as a medicine) or giving a procedure to follow to obtain a desired result.2. a mixture for feeding an infant, usually with cow's milk as a base, supplemented with vitamins and minerals. Various formulas are available, differing in protein, fat, and carbohydrate content in order to meet the nutritional requirements or restrictions of individual infants.chemical formula a combination of symbols used to express the chemical components of a substance.empirical formula a chemical formula that expresses the proportions of the elements present in a substance.molecular formula a chemical formula expressing the number of each element present in a substance, without indicating how they are linked.spatial formula (stereochemical formula) a chemical formula giving the numbers of atoms of each element present in a molecule of a substance, which atom is linked to which, the types of linkages involved, and the relative positions of the atoms in space.structural formula a chemical formula showing the spatial arrangement of the atoms and the linkage of every atom.em·pir·ic for·mu·lain chemistry, a formula indicating the kind and number of atoms in the molecules of a substance, or its composition, but not the relation of the atoms to each other or the intimate structure of the molecule. Synonym(s): molecular formulaAcronymsSeeMFmolecular formula
Words related to molecular formulanoun a chemical formula based on analysis and molecular weightRelated Words- chemical formula
- formula
- structural formula
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