CHEM. 162 TEST #1 REVIEW

1. CHEM. 162TEST #1 REVIEW DHof-lattice E, fig 8.5, pg. 295 steps formation LiF set up equations for each step Calculate & properly place formal charge on molecular structures Chemical Bond Types - describe ionic, covalent, metallic Lewis -- VSEPR dot structure electronic structure molecular geometry lone pair bond angle Trends Electronegativity bond polarity Bond Length Bond Strength Bond Energy Bond Order Melting/Boiling Pt DH calculations bond energies # of bonds formed octet rule endo - reactant, e- transfer break bonds, lose e-, BE>0 exo - pdt, gain e-, form bonds, ionic solid form, BE<0 dist/speed (de)localized e-

2. CHEM. 162Ch.13 TEST REVIEW EQUATIONS Ch. 13 CONCEPTS S, Entropy- Henry’s Law - gas solubility Raoult’s Law - vp of solns Solvation Process Colligative Properties decr vp, incr bp, decr fp van’t Hoff Effect Solubility & Factors to Consider: intermolecular forces ion-dipole H-bonding dipole-dipole dispersion Basic Principles DTf/b = Kf/b*m*i Sgas = KH*POgas Psoln = (X*P)solvent Various Concentration M = mol solute/L soln m = mol solute/Kg solvent X = mol solute/ mol soln soln = solute + solvent

3. CHEM. 162Ch.14 TEST REVIEW Ch. 14 CONCEPTS RXN - rate, expression, constant, order, law Integrated, Half-lifes Arrhenius Eqn, Activation Ea; graph Factors Influence Rate Rate - instantaneous, initial, average; graph RXN Mechanisms RDS, rate law, molecularity Catalyst - effect, nature Diagrams - draw, label parts endo/exo, catalyst, multistep Transition State, Activated Complex CALCULATIONS Various Rates Half-life Activation Ea Orders “Labels”

4. CHEM. 162Ch.15 TEST REVIEW EQUILIBRIUM >Calculate, Kc/Kp >Calculations based on [ ]/P; I.C.E. Tables >Direction RXN QUOTIENT, Qc >Calculate Q >Compare K - Q Le CHÂTELIER’S PRINCIPLE > to System >Direction of Rxn Reversible Rxn Interpret Graphs Interpret Rxn;  of coefficients PV = nRT Kp = Kc(RT)ngas

5. CHEM 162 Ch.11 Test Review Clausius-Claperyron; calculations Ln P = (-H/R)(1/T) EQUILIBRA q = n*CPHASE*DT & q = n*H gas -------> liq condensation (exo) (endo) vaporization <------- liq --------> solid freezing (exo) (endo; fusion) melting <------- COOLING CURVE; H calculations INTERMOLECULAR FORCES ion-dipole dipole-dipole dispersion hydrogen bonding bond type; bp/mp higher/lower hydrogen bonding examples

6. CHEM. 162FINAL TEST REVIEW EQUATIONS CONCEPTS Freezing/Boiling Pts pure liquid, solns, van’t Hoff Concentraton: molarity, molality, %, ppb, ppm Vapor Pressure Rate, Rate Law, Rate Constant, Rate Order, Activation Energy, Half-Live Equilibrium Constant, Expression, Le Chatelier DTf/b = Kf/b*m*i Sgas = KH*POgas Psoln = (X*P)solvent Various Concentration M = mol solute/L soln m = mol solute/Kg solvent X = mol solute/ mol soln soln = solute + solvent Models – Dot structures, geometry, atoms/molecules

7. Use past chapter reviews as guide for FINAL To better focus on your final, I have narrowed some of the things you will need to concentrate on. Your test may not incorporate all the concepts listed, also, the test for Wednesday may be different than Monday. Equations to Think About Henry (gas solubility)/Raoult (vapor pressure) Laws Molarity, molality, mole fraction(mass%) Arrhenius Eqn Activation E/Clausius-Clapeyron Rate constant, rate expression, rxn order, overall order Rates, instantaneous-change-initial Integrated rate laws/Half-lives, 0-1st-2nd orders Equilibrium constant, Equilib expression, Rxn quotient H enthalpy calculations(fusion, vaporization), solid, liquid, gas phases Freezing/Boiling point determinations, van’t Hoff factor