Lecture14_chem110_sa - Chapter 9 Molecular Geometry and Bonding Theories Prepare for Recitation September 29th ALEKS Objective 5 due September 27th

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Chapter 9: Molecular Geometry and Bonding Theories CH110 FA11 SAS 1 Prepare for Recitation September 29 th ALEKS Objective 5 due September 27 th ANGEL Quiz 5, September 29 th Lecture 13: September 21 st Lecture 14: September 23 rd Lecture 15: September 26 th Read: Ch. 2.6, 3.3-3.5, 9.1-9.3 Additional Preparation: BLB 3 : 25,29,35,37,51,53; Packet 3 : 1-9 BLB 9 : 23,25,27,38; Packet 9 : 1-7
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CH110 FA11 SAS 2 By the end of Today’s Lecture you should know: VSEPR Theory • Electron pair (electron domain) geometry • Molecular geometry Molecules with more than one central atom Molecules with multiple bonds KEY QUESTIONS: THE BIG PICTURE Chapter 9: Molecular Geometry and Bonding Theories What doe Lewis structures tell us about molecular geometry? What do electron domains and bonding domains tell us about molecular geometry? Remember: structure affects function! How is VSEPR theory used to predict bond geometry? How do polar bonds affect function? How do the different types of bonds ( σ , π ) affect reactivity?
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Conceptual Overview CH110 FA11 SAS 3 Structural Formula Valence e - Lewis structures e - domains Vs. Bonding domains Molecular geometry Identify polar bonds Molecular polarity
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Molecular Properties are Largely Determined by Molecular Shape CH110 FA11 SAS 4 Lewis Structure Lone e - pairs Bonding e pairs Arrangement of Atoms in the Molecule This is called the VSEPR Model ( V alence S hell E lectron P air R epulsion)
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CH110 FA11 SAS 5 Prediction of molecular shape from knowledge of electron domains (bonding or lone pairs) as shown by the Lewis structure Electron Domain:
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This note was uploaded on 01/18/2012 for the course CHEM 110 taught by Professor Hofmann,brucerob during the Fall '08 term at Pennsylvania State University, University Park.

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Lecture14_chem110_sa - Chapter 9 Molecular Geometry and Bonding Theories Prepare for Recitation September 29th ALEKS Objective 5 due September 27th

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