IUB CHEM-C 118 - 11-3 chapter 22 (19 pages)

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11-3 chapter 22



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11-3 chapter 22

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Pages:
19
School:
Indiana University, Bloomington
Course:
Chem-C 118 - Principles of Chemistry and Biochemistry Ii

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Coordination Chemistry Which transition metal has the electron configuration Ar 3d3 in the 4 oxidation state 1 2 3 4 Cr4 Mn4 Fe4 Co4 22 Coordination Chemistry 22 1 Properties of the Transition Elements 22 2 Iron and Steel The Use of Pyrometallurgy 22 3 Copper A Coinage Metal 22 4 Silver and Gold The Other Coinage Metals 22 5 Chromium 22 6 Coordinate Covalent Bonds 22 7 Crystal Field Theory Monday Monday November November 3 3 2014 2014 Read Read Section Section 22 2 22 2 and and 22 3 22 3 for for Monday Monday Sections Sections 22 4 22 4 22 5 22 5 and and 22 6 22 6 for for Wednesday Wednesday End End of of Chapter Chapter 22 22 Problems Problems 8 8 14 14 16 16 18 18 20 20 21 21 22 22 26 26 28 28 30 30 32 32 34 34 36 36 38 38 40 40 42 42 44 44 46 46 48 48 50 50 52 52 54 54 56 56 58 58 60 60 62 62 63 63 65 65 67 67 73 73 75 75 77 77 78 78 79 79 83 83 85 85 91 91 Oxidation States Transition metal ion properties High ox state compounds are strong oxidizing agents Cr2O72 14 H3O 6 e 2 Cr3 21 H2O Within the same element Low ox states are ionic high ox states are covalent MnCl2 solid contains Mn2 and Cl ions MnO4 contains covalent Mn O bonds Oxidation States Transition metal ion properties Ions with a partially filled d subshell make good catalysts Zn2 Pt2 Pt0 Oxidation States Biological Catalysts Iron can exist as Fe2 or Fe3 and acts as an electron shuttle Iron sulfur clusters Iron Steel Pyrometallurgy Iron The most abundant transition metal Soft and silvery white In air 4 Fe2 aq O2 g 4 H g 4 Fe3 aq 2 H2O l Rust 2 Fe3 aq 4 H2O l Fe2O3 H2O s 6 H aq Principal ores hematite Fe2O3 magnetite Fe3O4 Pyrometallurgy use high temperature to extract pure metal from its ores Iron Steel Pyrometallurgy 2 C s O2 g 2 CO g exothermic Fe2O3 s 3 CO g 2 Fe s 3 CO2 g Silica impurities are removed by limestone CaCO3 s CaO s CO2 g CaO s SiO2 s CaSiO3 Slag liquid silicates The furnace makes pig iron Pig iron is brittle because of impurities Blast Furnace Iron Steel Pyrometallurgy Cast iron pig



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