Definition of empirical formula in English:

empirical formula

noun

Chemistry

A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.
〔化〕成分式，经验式
Example sentencesExamples
- Analysis showed it to have an empirical formula that doesn't correspond to any compound that's ever been reported.
- When the chemical formula of an ionic compound is written down, it is the empirical formula that is used.
- The empirical formula of a compound is that which is obtained through laboratory research.
- The simplest version of the formula is the empirical formula.
- Butene and ethene have the same empirical formula CH 2 but different molecular and structural formulas.

Definition of empirical formula in US English:

empirical formula

noun

Chemistry

A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.
〔化〕成分式，经验式
Compare with molecular formula, structural formula
Example sentencesExamples
- The empirical formula of a compound is that which is obtained through laboratory research.
- Analysis showed it to have an empirical formula that doesn't correspond to any compound that's ever been reported.
- Butene and ethene have the same empirical formula CH 2 but different molecular and structural formulas.
- The simplest version of the formula is the empirical formula.
- When the chemical formula of an ionic compound is written down, it is the empirical formula that is used.

词汇	empirical formula
释义	Definition of empirical formula in English: empirical formula noun Chemistry A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms. 〔化〕成分式，经验式 Example sentencesExamples Analysis showed it to have an empirical formula that doesn't correspond to any compound that's ever been reported. When the chemical formula of an ionic compound is written down, it is the empirical formula that is used. The empirical formula of a compound is that which is obtained through laboratory research. The simplest version of the formula is the empirical formula. Butene and ethene have the same empirical formula CH 2 but different molecular and structural formulas. Definition of empirical formula in US English: empirical formula noun Chemistry A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms. 〔化〕成分式，经验式 Compare with molecular formula, structural formula Example sentencesExamples The empirical formula of a compound is that which is obtained through laboratory research. Analysis showed it to have an empirical formula that doesn't correspond to any compound that's ever been reported. Butene and ethene have the same empirical formula CH 2 but different molecular and structural formulas. The simplest version of the formula is the empirical formula. When the chemical formula of an ionic compound is written down, it is the empirical formula that is used.
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