@gdjoelo3 asked 5 months ago.

How many lone pairs of valence electrons are there in a molecule of fumaric acid?

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@logic answered 4 months ago.

The steric number of a central atom in a molecule is the number of atoms bonded to that central atom, called its coordination number, plus the number of lone pairs of valence electrons on the central atom. In the molecule SF 4, for example, the central sulfur atom has four ligands; the coordination number of sulfur is four. In addition to the four ligands, sulfur also has one lone pair in this molecule.

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@Gaurii answered 5 months ago.

The steric number of a central atom in a molecule is the number of atoms bonded to that central atom, called its coordination number, plus the number of lone pairs of valence electrons on the central atom. In the molecule SF 4, for example, the central sulfur atom has four ligands; the coordination number of sulfur is four. In addition to the four ligands, sulfur also has one lone pair in this molecule.

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@clarkee answered 5 months ago.

  VZCYOOQTPOCHFL-OWOJBTEDSA-N Computed by InChI 1.0.5 (PubChem release 2019.06.18) Computed by OEChem 2.1.5 (PubChem release 2019.06.18) Computed by OEChem 2.1.5 (PubChem release 2019.06.18) Fumaric acid, PharmaGrade, USP/NF, Manufactured under appropriate GMP controls for pharma or biopharmaceutical production.
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@omeppereku answered 5 months ago.

Fumaric acid is an organic acid with the formula HOOCCH(CH)COOH. It is a colourless, crystalline, weak dibasic acid that is used as a food additive and in polymer chemistry.
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@eddenubiss answered 5 months ago.

There are no lone pairs of electrons in a molecule of fumaric acid. Each of the carbon atoms in the molecule is bonded to four others, forming a tetrahedral shape around the central carbon. As a result, no electrons are free to roam around the molecule and there are no lone pairs.
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