#Chem 162-2008 9th week recitation

#Chem 162-2008 9th week recitation - CHEMISTRY 162-2008 9th...

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CHEMISTRY 162-2008 9 th WEEK RECITATION Ed Tavss, PhD ANNOUNCEMENTS E-MAIL ATTENDANCE Sign in EXAMS Only approx. 205 out of 725 points used so far. Anyone can still get a B The vast majority can still get an A. We’ll spend part of the recitation on Coordination Chemistry and  the balance on reviewing for the exam. My Thursday students are encouraged to attend one of the two  Wednesday recitations in lieu of their Thursday recitation. QUIZ MISCELLANEOUS Chem 162-2008 9 th week recitation 1
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PLAN FOR TODAY : CHAPTER 21 - TRANSITION METALS AND COORDINATION CHEMISTRY Coordination Chemistry Chem 162-2008 9 th week recitation 2
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Chem 162-2008 9 th week recitation 3 PERIODIC TABLE AND PERIODIC PROPERTIES*
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Coordination Compound Fundamentals Coordination Compound Fundamentals Ligand (L: ligo, to bind): A substance (neutral or anionic) having a lone electron pair that bonds to a transition metal cation (i.e., Lewis base-Lewis acid interaction) Complex ion: Transition metal cation + ligands Usually, but not always, a transition metal; usually a cation, but could be an anion or neutral. Coordination compound (Transition) metal cation + ligands + counterions Complex ion Coordination compound dissociation in aqueous solution: [Co(NH 3 ) 5 Cl]Cl 2 → [Co(NH 3 ) 5 Cl] 2+ + 2Cl - Ligands are much more tightly attached to the metal cation than the counterions. The ligands are tightly attached to the counter ion (covalent bonds), whereas the counterions move freely around the solution (weaker ion-dipole bonds with solvent). - AgNO
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#Chem 162-2008 9th week recitation - CHEMISTRY 162-2008 9th...

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