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Chemistry 2000 - Overview. Review: Concepts from chem. 1000 important to chem. 2000. Chapter 22 Transition metals and Coordination Compounds. Lewis acids and Lewis bases ligands (monodentate, bidentate, chelating) co-ordination number naming co-ordination complexes and complex salts.
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Chemistry 2000 - Overview Review: Concepts from chem. 1000 important to chem. 2000 Chapter 22 Transition metals and Coordination Compounds Lewis acids and Lewis bases ligands (monodentate, bidentate, chelating) co-ordination number naming co-ordination complexes and complex salts Chapter 13 - Intermolecular forces Dipole-dipole, dipole-induced dipole and london forces Hydrogen bonding and surface tension Properties of liquids: vapour pressure boiling points Properties of Solids: melting points, crystallinity, types of solids Phase diagrams Chapter 14 – Solutions and their behaviour Concentration: Morality, molality, mole fraction and weight percent Colligative properties: b.p. elevation, f.p depression and osmotic pressure
Chemistry 2000 Chapter 15 – Chemical Kinetics Rate constant, and rate equations Zero-, first-, and second-order rate laws Collision theory and Arrhenius law Reaction co-ordinates, intermediates and transition states Mechanisms, catalysts, rate determining steps Chapter 16 – Chemical Equilibrium Dynamic equilibrium Equilibrium Constants Le Châtelier’s principle and reaction quotient Problem solving
Chemistry 2000 Chapter 17 – Acids and bases Lewis, Brønsted and Arrhenius definition Conjugate acid-base pairs, acid-base properties and reactions Ionization constants- Ka, Kb, Kw – and thier expressions pH, pOH, pKw, pKa and pKb More problem solving Chapter 18 – Other aspects of aqueous equilibria Titrations and Buffers Henderson-Hasselbach equation Indicators Equivalence point vs. end poin Solubility rules, Ksp and effects on solubility Even more problem solving
Chemistry 2000 Chapter 6 – Energy and chemical reactions Energy, stability and chemical reactions Exothermic vs. endothermic System vs. surroundings – movement of heat - “thermodynamics” Calorimetry Enthalpy calculations Chapter 19 – Entropy and Free energy Laws of thermodynamics Enthalpy, entropy, and Gibbs free energy Gibbs free energy and equilibrium Temperature and equilibrium constants Chapter 20 – Electron transfer reactions Oxidation states, half- reactions and balancing redox reactions Voltaic cells, electrolytic cells (batteries) and cell potentials Fuels cells and energy efficiency
Common Formulae from Chem 1000 The mole Kinetic Theory of gases Density Ideal Gases Nuclear Chemistry Waves Quantum mechanics
The Orbitals of the Hydrogen Atom 2 nodes 1 node 0 nodes Radial nodes 2 planar nodes 1 planar node
Afbau sequence from Periodic Table p block d block s block f block
F- F F Li+ d Bond polarity and electronegativity
Pauling Electronegativity General trend in element electronegativity
X Shape Family AX4Lone pairs and shape: 4 Electron Pairs Linear Hydrogen Fluoride, HF 1 bond pair 3 lone pairs
H2 He2 Energy Levels of LCAO-Molecular Orbitals
The complete energy level diagram Li2 – bond order 1 Be2 - fills the σ2s* orbital, BO = 0 B2 - partially fills π2p levels, BO = 1 -2 e’s parallel i.e. paramagnetic C2 - fills π2p,- BO = 2 - diamagnetic N2 - fills σ2p- BO = 3 - diamangetic O2- partially fills π2p* levels, BO = 2 - paramagnetic F2 -fills π2p* levels - BO = 1 Ne2 – fills σ2p*, BO = O, does not exist
BeH2 and sp Hybridization
BH3 and sp2 Hybridization
CH4 and sp3 Hybridization
H2O and sp3 Hybridization O 2 H 2 LP’s sp hybrids 3 s s 1 1 2 C-H
Bonding in Large Molecules sp2 sp3 sp2 sp3 sp3 sp3 sp3
Chapter 22 Transition Metal Coordination Compounds
Six-Coordinate Metals Complexed by Three Bidentate Ligands
Electronic Structure and Colour of Transition Metal Coordination Compounds