CHEM 2535 CHEM 2535
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This 3 page Class Notes was uploaded by Savah Notetaker on Friday September 9, 2016. The Class Notes belongs to CHEM 2535 at Virginia Polytechnic Institute and State University taught by Jatinder Josan in Summer 2016. Since its upload, it has received 49 views. For similar materials see Organic Chemistry in Chemistry at Virginia Polytechnic Institute and State University.
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Date Created: 09/09/16
Organic Chemistry Chapter 1: Things that will be covered: Valence bond theory Molecular orbital theory Hybridization Molecular structure Molecular polarity Atoms have atomic orbitals combine Molecular orbitals Polarity of bond Molecular polarity Theories of Covalent bonds and molecular structure Valence bond theory [Lewis dot and Kekule structure] Molecular orbital theory Valence electrons H Li Be B C N O F 1 2 3 4 5 6 7 Valence Electrons Draw Lewis dot structures H 2 H + H H H H 2 HH F2 F + F F F Draw Kekule Structure Ammonia F2 FF H N H H N H F F H H Octet Rule: NonBonding electrons (NBE) + Bonding electrons (BE)=8 total Main row elements Formal Charges (FC) FC= #VE(NBE+1/2BE) FC= 1(0+1/2(2))=11=0 FC= 3(0+1/2(6))=33=0 FC= 4(2+1/2(6))=45=1 FC=0 Bond number 1 bond: H Single Bonds F Cl 2 bonds: O O Double bond 3 bonds: N N N Triple bond 4 bonds: C C C C Bond polarity and dipole mom ) = Size of charge X distance between charges (Bebye units D) HC HF CMg 0.4 D HBv 0.8 D = 0 D
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