Prediction of molecular geometry - 1 | Molecular Geometry

Chapter 9 - Molecular Geometry

What is the electron-domain geometry and the molecular shape of the following molecules:

H₂O, SiO₂, AlCl₃ and PCl₅ ?

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Solution

Electron-domain Geometry = EDG; Molecular Shape = MS

H₂O ⇒ AX₂E₂ ⇒ EDG = tetrahedral, MS = bent

SiO₂ ⇒ AX₂ ⇒ EDG = linear, MS = linear

AlCl₃ ⇒ AX₃ ⇒ EDG = trigonal planar, MS = trigonal planar

PCl₅ ⇒ AX₅ ⇒ EDG = trigonal bipyramidal, MS = trigonal bipyramidal

General Chemistry 1 - Prediction of molecular geometry - 1