GENERAL CHEMISTRY CHEM 162
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This 5 page Study Guide was uploaded by Carmela Kilback on Wednesday September 9, 2015. The Study Guide belongs to CHEM 162 at University of Washington taught by Staff in Fall. Since its upload, it has received 35 views. For similar materials see /class/192605/chem-162-university-of-washington in Chemistry at University of Washington.
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Date Created: 09/09/15
Chapter 159 Chapter 16 Midterm 2 Topics Catalysis enzymes as catalysts homogeneous and heterogeneous catalysis Intermolecular Forces Iondipole dipoledipole dispersion etc Hydrogen bonds and their effect on molecular properties Properties of liquids surface tension viscosity Crystal lattices Xray analysis Closest packing calculations of density unit cells atomic masses etc Bonding in metals Network atomic solids Semiconductors lonic solids types of packing holes Vapor pressure and changes of state Partial pressure dependence on temperature boiling point dependence on pressure Phase diagrams and transitions Midterm Exam 1 Format Closed book calculators allowed Questions Multiple choice problem solving Help Fundamental constants periodic table and select formulas will be provided Topics 1 Hybridization and the Localized Electron Model Assign hybridization to an atom in a molecule or an ion Count sigma and pi bonds in a molecule or ion using LEM 2 Molecular orbitals Draw an M0 diagram for a molecule or an ion Fill in electrons in an M0 Calculate bond orders in molecules and ions Assign molecular physical properties magnetism spin based on MO39s Rank bond lengths and bond dissociation energies based on MO39s 3 Molecular Spectroscopy Convert photon frequency to wavelength and vice versa Rank photon absorption wavelengths based on substance color Calculate or rank electronic transitions based on orbital energies Calculate vibrational frequency from reduced mass and bond force constant Calculate or rank vibrational frequencies for molecules that differ in isotopes Rotational spectroscopy spectral range for rotational transitions moments of inertia Things to Study for Chem 162C Final Exam The nal exam will be comprehensive last 2 hours and will cover Lecture 1 through Lecture 21 The material covered since the last exam will be emphasized slightly more than the rest of the material The exam will consist of multiple choice and short answer questions Calculations may be required to determine your answer Key formulas will be provided You will need a scientific calculator Topics Covered Include Hybridization Chapter 14 Molecular orbital diagrams Chapter 14 Bond order amp Sigma vs pibonding Chapter 14 P41 quot vs Tquot quot 39 39 Chapter 14 Rate laws Chapter 15 Graphical determination of rate constants Chapter 15 HalfiLives Chapter 15 Multistep reaction mechanisms Chapter 15 SteadyiState approximation Chapter 15 Intermolecular Forces Chapter 16 Solid State Packing and Lattice Structures Chapter 16 39 J doped 39 J C J and pn Junctions Chapter 16 Ionic Solids tetrahedral vs octahedral vs cubic holes Chapter 16 Vapor Pressure amp AHVap of pure liquids Chapter 16 Obtaining AHV3p from PWP vs Temp data Chapter 16 Changes of State amp Phase Diagrams Chapter 16 Thermodynamics of Solution Formation Chapter 17 Predicting Relative Solubilities of Substances Chapter 17 Molality vs Molarity vs mole fraction Chapter 17 Effect of Temperature on Solubility Chapter 17 Vapor Pressure Lowering amp Raoult s Law Chapter 17 Using Raoult s Law to determine MW of nonvolatiles solute Chapter 17 Boiling Point Elevation ATb Chapter 17 Freezing Point Depression ATf Chapter 17 Osmotic Pressure Chapter 17 Determining MW from Osmotic Pressure ATb or ATf Chapter 17 Colligative Properties of Ionic and NonIdeal Solutions Chapter 17 Periodic Trends in Atomic Size Ionization Energies Electronegativities Chapter 18 Location of Metals vs Nonmetals in the Periodic Table Chapter 18 Location of Reductants vs Oxidizing Agents in the Periodic Table Chapter 18 The Chemistry of Hydrogen the Alkali Metals and Alkaline Earth Metals Chapter 18 The Chemistry of the Group 3A 5A 6A and 7A elements Chapters 18 amp 19 The Chemistry of the TransitionMetals their ions and complexes Chapter 20 Ligands dorbitals and crystal eld theory of bonding Chapter 20 LigandField strength and the crystal field splitting parameter A0 Chapter 20 Magnetic properties and color of transitionmetal complexes Chapter 20 Isomers of transitionmetal complexes and their chirality Chapter 20 Metal ions in biology and Bioinorganic Chemistry Chapter 20 Things to Study for Chem 162C Exam I The exam will consist of multiple choice and short answer questions Calculations may be required to determine your answer Key formulas will be provided You will need a scienti c calculator Topics Covered Include Hybridization Chapter 14 Molecular orbital diagrams Chapter 14 Bond order Chapter 14 Sigma vs pibonding Chapter 14 Pm quot vs Tquot quot 39 39 Chapter 14 Rate laws Chapter 15 Graphical determination of rate constants Chapter 15 HalfiLives Chapter 15 Multistep reaction mechanisms Chapter 15 SteadyiState approximation Chapter 15 Intermolecular Forces Chapter 16 Solid State Packing and Lattice Structures Chapter 16 Types of Problems You Might Encounter Include Hybridization Chapter 14 Given the molecular formula be able to determine the hybridization of the central atom Requires that you know how to determine the 3D structure using VSEPR theory Sigma versus pi bonding Chapter 14 Given a Lewis dot structure be able to determine the hybridization of a given atom and the orbitals involved in forming both sigma and piibonds Molecular Orbital Diagrams Chapter 14 Be able to generate the molecular orbital diagram for a simple diatomic molecule and predict the bond order Bond Order Bond Strength and Bond Length Chapter 14 Be able to predict bond order given the electronic structure of a molecule eg 0252Ozp2 32p3 etc and determine whether the bond would get longer and weaker or stronger and shorter upon the removal or addition of an electron Molecular Orbitals Chapter 14 Understand orbital phases and how they in uence bonding versus antibonding properties of molecular orbitals Be able to draw a 0 Op Op 75p and 7513 molecular orbital Paramagnetism Chapter 14 Be able to identify paramagnetic molecules either from their Lewis dot structure if possible or the molecular orbital diagram Kinetics Chapter 15 Be able to draw a reaction coordinate for exothermic and endothermic reactions which includes the reaction barrier and transitionistate Be able to identify the activation energy Ea for both the forward and reverse reaction Rate Laws Chapter 15 Given the reaction order with respect to all reactants be able to write out both the differential and integrated rate laws Reaction Mechanisms Chapter 15 Given a multistep reaction mechanism determine the net reaction in the form of a balanced equation and be able to identify the rate41etermining step and associated molecularity Activation Barriers Chapter 15 Given the rate constants at two different temperatures be able to calculate the activation barrier Ea Half Life Chapter 15 Given the rate constant reactionorder and initial concentrations know how to determine the halfilife for a zeroorder firstorder and secondorder reaction Kinetics Chapter 15 Be able to draw a reaction coordinate for exothermic and endothermic reactions which includes the reaction barrier and transitionistate Be able to identify the activation energy Ea for both the forward and reverse reaction Intermolecular Forces Chapter 16 Given a series of molecules know how to predict which will have the highest boiling point by taking into account the dominant intermolecular forces involved Hbond dipoledipole ion chargedipole charge dispersion Solid State Structures Chapter 16 Given a solid state packing structure fcc bcc simple cubic hcp know how to determine how many atoms are contained in the unit cell Intermolecular Forces Chapter 16 Given a molecular formula know how to determine whether hydrogen bonds will be important in determining solution or solid state properties
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