Chemistry 3 Outline

CHEMISTRY 3 OUTLINE S.Y. 2009 -2010

J. ANDAYA/R. BUTARAN FIRST QUARTER Orientation Assigning of laboratory groups Release of glassware Review of Chemical Kinetics Expt 1: NO2-N2O4 equilibrium system Group activity Introduction to chemical equilibrium Meaning of equilibrium constant Writing KC & KP equations for - homogeneous system - heterogeneous system Combinations of equilibrium constants - Hess’ law Relating KC to KP Exercises Discussion Long Exam 1 (7/2-3) Calculating equilibrium constants Application of equilibrium constants - predicting a direction of a reaction; relationship between KC/KP and Q - calculating eq’m concentration Exercises Discussion Long Exam 2 (7/20-21) Expt 2:Le Chateliers: Factors affecting equilibrium Thermodynamics aspects: ∆G & KEQ Exercises Discussion Long Exam 3 (7/30-31)

Materials to Bring/group      

padlock 6 med. Droppers hand soap rags tissue paper Short Folder

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box liquid detergent masking tape hand towel 5 micro spatula

SECOND QUARTER CAL Expt 3: Hydrolysis of salts Properties of acids and bases Operational definition Conceptual definition - Arrhenius theory - Brönsted-Lowry theory  Relative acid-base strength  Amphoterism  Protolysis - Lewis theory Expt 4: Hydroxide of the 3rd row elements Long Exam 1 (8/24-25) Acid-base of salt solutions Relative acid-base strengths of the hydroxides of the 3rd row elements Reactivity of Hydrides Periodicity of properties of some hydroxy compounds Relationship of structure to acidity and basicity Exercises Long Exam 2 (9/10-11) KW, pOH & pH concepts Weak, strong acids and bases KA & KB calculations Exercises Expt 5: Acid-base titration Long Exam 3 (9/21-22) Neutralization and KA & KB calculations

Practical Exam (10/1-2)

Grading System 1st to 3rd Quarter: LONG EXAM = 50% PERIODIC EXAM = 25% OTHERS = 25% (Lab Reports, Quizzes/SWs, Performance, etc.) 4th Quarter: PRACTICAL EXAM = 40% PERIODIC EXAM = 25% LONG EXAM = 25% OTHERS = 10%

THIRD QUARTER CAL Introduction Writing ionic equations Balancing redox reactions Exercises and Discussion Long Exam 1 (10/19-20) Expt 6: Electrochemical cells Quantitative aspect of electrochemical cells: Standard reduction potential, half reaction cell emf, standard and nonstandard conditions, spontaneity of redox reactions, free energy & chem eq'm

Expt 7: Corrosion Long Exam 2 (11/9-10) Corrosion: causes and prevention Expt 8: Electrolysis of PbBr2 (demo) Expt 9: Electrolysis of H2SO4 (demo) Expt 10: Electrolyis of KI solution Electrolysis and electrolytic cells Exercises Expt 11: Quan. aspect of electrolysis Faraday’s Law of electrolysis Exercises Long Exam 3 (11/26-27)

FOURTH QUARTER Orientation Interionic reactions: properties of - insoluble solids - complex ions - gases - redox products Exercises Expt 12: 20.1 Expt 13: 20.6 Analysis of cations - preliminary test - confirmatory test Long Exam 1 (1/14-1/15) Analysis of anions - preliminary test - confirmatory test Long Exam 2 (2/4-5) Practical Exam (2/15-17)