What Is The Molar Mass Of Fluorine, F2? Molar Mass / Molecular Weight Of F2: Fluorine Gas

Chemical Formula

Molecular Weight





37.99681 g/mol

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The Fluorine molecule consists of 2 Fluorine atom(s) – a total of 2 atom(s). The molecular weight of Fluorine is determined by the sum of the atomic weights of each constituent element multiplied by the number of atoms, which is calculated to be:

$$ 37.99681 · frac{g}{mol} $$

The exact term of the above molecular weight is “molar mass”, which is based on the atomic mass of each element. Molecular weight is actually an older term of “relative molar mass” or “molecular mass”, which is a dimensionless quantity equal to the molar mass divided by the molar mass constant defined by 1 g/mol. Molecular masses are calculated from the standard atomic weights of each nuclide, while molar masses are calculated from the atomic mass of each element. The atomic mass takes into account the isotopic distribution of the element in a given sample.

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Ball-and-stick model of Fluorine

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More Properties of Fluorine

For physicochemical, thermodynamic, transport, spectra, and other property data & information, the followings are available from “Mol-Instincts”, a chemical database based on quantum mechanics:

Quantum Mechanical Analysis Molecular Descriptors

Additional Information for Identifying Fluorine Molecule

InChI (IUPAC International Chemical Identifier) information of Fluorine

In addition to the molecular weight information, the structural information of Fluorine in a textual expression is available via InChi. The full standard InChI of Fluorine is given below:


It can provide a way to encode the molecular information of Fluorine to facilitate the search for the compound information in databases and on the web.

The condensed, 27 character standard InChIKey (hashed version of the full standard InChI) of Fluorine is:


It may allow easier web searches for Fluorine. The InChIKey, however, needs to be linked to the full InChI as well in order to get back to the original structure of the Fluorine as the full standard InChI cannot be reconstructed from the InChIKey.

Other names (synonyms) or registry numbers of Fluorine

There may be different names of the Fluorine compound depending on the various situations of industrial applications, which are given below including the registry numbers if available:

Additional Outstanding Products

Fluorine Identification Summary Frequently Asked Questions (FAQs)

What’s the formula of Fluorine? How many atoms and what are the elements in the Fluorine molecule? How many chemical bonds and what types of bonds are in the Fluorine structure? What’s the molar mass of Fluorine? What’s the SMILES format of Fluorine? What’s the InChI format of Fluorine? What’s the InChIKey string of Fluorine?
2 atom(s) – 2 Fluorine atom(s)
1 bond(s) – 1 non-H bond(s)
37.99681 g/mol

9755 The contents of this page can freely be shared if cited as follows: Source: Mol-Instincts Chemical Database, Predicted on Quantum. Please hyperlink “Mol-Instincts” to www.brianowens.tv.


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