Molecular Formula Definition

A molecular formula describes the number and type of atoms in a molecule.
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Molecular Formula Definition: An expression which states the number and type of atoms present in a molecule of a substance.

Examples: There are 6 C atoms and 14 H atoms in a hexane molecule, which has a molecular formula of C6H14.

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Helmenstine, Anne Marie, Ph.D. "Molecular Formula Definition." ThoughtCo, Feb. 7, 2017, thoughtco.com/molecular-formula-definition-606378. Helmenstine, Anne Marie, Ph.D. (2017, February 7). Molecular Formula Definition. Retrieved from https://www.thoughtco.com/molecular-formula-definition-606378 Helmenstine, Anne Marie, Ph.D. "Molecular Formula Definition." ThoughtCo. https://www.thoughtco.com/molecular-formula-definition-606378 (accessed November 19, 2017).