SO2 Molecular Geometry, Bond Angles (and Electron Geometry)

Wayne Breslyn
Wayne Breslyn
31.3 هزار بار بازدید - 2 سال پیش - An explanation of the molecular
An explanation of the molecular geometry for the SO2 ion (Sulfur dioxide) including a description of the SO2 bond angles. The electron geometry for the Sulfur dioxide is also provided.

The ideal bond angle for the Sulfur dioxide is 120° since it has a Bent molecular geometry. Experimentally we would expect the bond angle to be approximately 119°.

To determine the molecular geometry, or shape for a compound like SO2, we complete the following steps:

1) Draw the Lewis Structure for the compound.
2) Predict how the atoms and lone pairs will spread out when the repel each other.
3) Use a chart based on steric number (like the one in the video) or use the AXN notation to find the molecular shape. This will be determined by the number of atoms and lone pairs attached to the central atom.
If you are trying to find the electron geometry for SO2 we would expect it to be Trigonal planer.

Helpful Resources:

• How to Draw Lewis Structures: How to Draw Lewis Structures: Five Ea...
• Molecular Geometry and VSEPR Explained: Molecular Geometry: Rules, Examples, ...
• Molecular Geo App: https://phet.colorado.edu/sims/html/m...
Get more chemistry help at http://www.breslyn.org

Drawing/writing done in InkScape. Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).

Chapters
0:00   Lewis Structure
0:24   Molecular Geometry  (Steric Number and Lone Pairs)
0:52   3D Visualization of Molecular Geometry
1:32   AXE Method
2 سال پیش در تاریخ 1401/04/11 منتشر شده است.
31,333 بـار بازدید شده
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