molecular formula definition

  • noun:
    • A chemical formula that shows the quantity and forms of atoms in a molecule.
    • A notation showing the amount of atoms of each and every element contained in a compound.
    • a formula showing the supposed molecular constitution of a compound.
    • a manifestation representing the composition of elements in a chemical substance, frequently consisting of some letters and numbers comprising the atomic symbols of every factor within a compound followed closely by the amount of atoms of this element within one molecule associated with the compound. Hence the molecular formula for typical alcohol (ethyl liquor) is C2H6O, meaning that each molecule contains two carbon atoms, six hydrogen atoms, plus one air atom. The molecular formula is written to offer some indication of the real framework regarding the molecule, in which case architectural units can be written individually. Thus, ethyl alcohol could be written as CH3.CH2.OH or CH3-CH2-OH, where the duration or dash between useful groups shows a single bond between the concept atoms of each and every group. This formula demonstrates that in ethyl liquor, the carbon of a methyl team (CH3-) is connected to the carbon of a methylene group (-CH2-), that is connected to the oxygen of a hydroxyl team (-OH). A structural formula is a graphical depiction of relative jobs of atoms in a molecule, and might be very complicated.
    • a chemical formula centered on evaluation and molecular fat

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