Advanced Placement Chemistry Course Goals: This course is designed to provide students with a first-year college chemistry experience. Students will gain the understanding of concepts and content, the study skills, lab skills expected of a first-year college chemistry student. Textbook and Laboratory Resources Textbook: Chemistry, 11th Edition, Raymond Chang and Kenneth A. Goldsby, McGraw-Hill 2013 Laboratory investigations are taken from the following sources: - Laboratory Manual for Principles of General Chemistry, Fifth Edition, J.A. Beran, Wiley, 1994 - General Chemistry Laboratory Manual, 2nd Edition, Perta A.M. van Koppen, McGraw-Hill 2007 (van Koppen) - Vernier Advanced Chemistry (Vernier) - Laboratory Experiments for Advanced Placement Chemistry, Sally Ann Vonderbrink, Flinn Scientific, 1995 (Vonderbrink) Overview and Structure of Course Classes meet every other day for 83 minutes on an A-B block schedule. Our schedule provides for 33 weeks before the test, with the last 2 weeks used as make-up, review, and enrichment in the form of collaborative problem-solving and peer-reviewed writing. We offer two sections of Advanced Placement Chemistry, scheduled during first period (A days) and second period (B days). Students are expected to preview material prior to class by reading and using other resources provided. Class time is then used for lecture/explanation, to discuss questions and clear up confusion, work through application problems, and a general introduction to lab. To extend learning time for students, we make use of zero hour time, advisory time, lunch, and after school time for discussion, collaborative work on problem-solving, lab prep, and data analysis. The lab is always open under supervision for at least an hour both before and after school and at lunch. Students meet in groups outside of class time, under instructor supervision in the lab classroom, for approximately 30-60 minutes for each of the 22 labs. Students use this collaborative out-of-class group time before lab day to plan their lab, as additional tome to carry out their lab work, and meet again after lab to analyze their lab work together. On lab days, students arrange to use these additional blocks of time for actual lab work as needed. Both sections are scheduled adjacent to either zero-hour and advisory, or advisory and lunch. Collaborative study groups are a carryover from firstyear chemistry. This allows class time on lab days to used exclusively for bench work and data collection. This practice models the collaborative study groups students often form in college. Some students have completed the following labs during first year chemistry: Water of Hydration, Determination of the Molar Mass of Gas, in addition to basic first-year labs in separating matter, reactions and types, molecular model-building, stoichiometric analysis, and gas laws. These labs remain, at present, part of the AP Chem course so that all students will have the opportunity to perform them. Students are required to maintain a laboratory notebook with a write-up for each lab. Lab write-ups includes a purpose with hypothesis if appropriate, introduction, safety, chemical data taken from MSDS, materials list, procedure, and data tables formatted before lab, and an analysis including appropriate calculations, graphs, calculation tables, discussion, error analysis, and conclusion. The Beer’s Law Lab (17) is included in the Determination of an Equilibrium Constant Lab. Determination of Indicators Lab (11) is included in the Standardization of a Primary Solution Lab. Units 1 - 9, and 12 (see below) are largely review of topics from first year chemistry. The fundamental concepts are the focus of a summer review assignment. A 30-minute test over this review material is given on Day 3 of class. Topics marked as Review are assigned as reading for class preparation and used as background in class. Additional work is done in out-of-class study sessions as needed. Grades are based on 6 exams, quizzes, homework quizzes, and lab write-ups. Weeks 1 2 2.5 Unit Topic Unit 1: Matter, Measurement, Review (3) Review from Year 1: as summer assignment. Brief in-class review as preparation for lab. Lab safety and technique Physical and chemical properties Physical and chemical changes Evidence for atomic theory Determination of atomic masses by chemical and physical means; isotopes Nomenclature, including polyatomic ions Writing and balancing chemical equations Five types of reactions; prediction of products Composition stoichiometry: percent composition, empirical formulas Mass/mole relationships in chemical reactions, limiting reactants Basis for the arrangement of the periodic table Test over summer review topics on Day 3. (30 min) Unit 2: Solutions, Reactions, Stoichiometry (4) Review from Year 1: summer assignment. Brief in-class review as preparation for lab. Types of reactions taking place in aqueous solutions Topics (new) Properties of aqueous solutions; conductivity Reactions: precipitation, acid-base, oxidation-reduction Writing ionic and net ionic equations Balancing equations for redox reactions Unit 3: Gas Laws (5) Review from Year 1: Kinetic Theory and interpretation of ideal gas laws (introduction) Properties of gases Laws: conceptual and quantitative problem solving Topics Properties of gases Relationships among properties of gases: temperature, pressure, volume, amount Chapters Labs Ch 1-3 1. Determination of a Chemical Formula (Vernier #2) 2. Water of Hydration (Vernier #2) Ch 4 14.Separation and qualitative analysis of cation and anions (Carolina Biological kit) Ch. 5 3. Determination of Molar Mass by Vapor Density (Vonderbrink #7) 5. Determination of the Molar Volume of a Gas (van Koppen #5) 2.5 1 Laws, conceptual and calculated relationships, application of equations: Boyle, Charles, Gay-Lussac, Dalton’s Law of Partial Pressure; combined gas law, ideal gas law. Gas density calculations; molar mass, molar volume Stoichiometry of gases in chemical reactions; mass, mole, volume relationships in chemical reactions Kinetic molecular theory as a basis for interpretation of ideal gas laws Diffusion, effusion; Graham’s Law, Deviation of gases from ideal behavior Unit 4: Thermochemistry Review from Year 1: Specific heat of a metal Types, interconversions, transfer of energy Energy changes in Chemical Reactions – endothermic, exothermic Topics State functions Basic laws of work and thermodynamics First law: enthalpy of chemical reactions Standard enthalpy of formation and reaction Calorimetry Hess’s law Heat of solution Unit 5: Atomic Structure, Part 2: Electrons Review from Year 1: Evidence for atomic theory Isotopes Electron configuration – energy levels, sublevels, orbitals Topics Emission spectra Planck’s quantum theory Photoelectric effect Development of the Bohr model Dual nature of electrons Quantum mechanics, quantum numbers, orbitals Electron configurations Ch. 6 13. Determining the enthalpy change of a chemical reaction (Vonderbrink #6) Ch. 7 Spectroscopy (dry lab; in cooperation with local university) (Beran #11) 2 0.5 1.5 1 Unit 6: Periodic Table and Periodic Properties of Elements Descriptive Chemistry Review from Year 1: Periodic law Electron configurations predicted from periodic table Trends in atomic and ionic radii, electronegativities, ionization energies Topics: Review of the development of Mendeleev’s periodic table Periodic relationships: atomic radii, ionization energies, Relationships among elements on the periodic table: horizontal, vertical, diagonal; examples from alkali metals, alkaline earth metals, halogens, and the first series of transition elements. Chemical reactivity Trends in physical properties ex. Density Trends in chemical properties Unit 7: Nuclear Chemistry Review from Year 1: Atomic number, mass number, atomic structure Isotopes Topics: Nuclear equations, half-lives, radioactivity Applications in chemistry Unit 8: Chemical Bonding Review from Year 1: Lewis dot symbols Ionic and covalent bonds; electronegativity; properties Polarity of bonds Topics: Relationship of bond type to states, structure, and properties of matter Lattice energy determination Unit 9: Molecular Geometry and Bonding Theories Review from Year 1: Writing Lewis dot structures Basic molecular geometry Topics Molecular geometry from electron dot structures Ch. 8 8. Analysis of Bleach (Vonderbrink #10) Ch. 19 Ch. 9 18. Chromatography (Beran #4) Ch. 10 Model building; modeling the application of VSEPR (dry lab) 1 1 2.5 VSEPR model and application Dipoles Valence bond theory Hybridization of atomic orbitals Resonance Sigma and pi bonds Molecular orbitals Unit 10: Intermolecular Forces Review from Year 1: Polarity of water; hydrogen bonding in water Topics: Van der Waals forces; London dispersion forces Structure of solids Liquids and solids as explained by the kinetic-molecular theory Types of crystals; metallic bonds Relationship of bond type to states, structure, and properties of matter Phase changes (changes of state), phase diagrams for 1component systems; critical point and triple point Unit 11: Coordination Chemistry: Winter Break Bonus Topics Properties of transition metals Coordination compounds; oxidation numbers, nomenclature Structure of coordination compounds Structural isomerism of coordination complexes Reactions and applications Unit 12: Properties of Solutions Review from Year 1: Formation of a solution, factors affecting solubility (introduction) molarity Topics (Review from Year 1): Types of solutions Factors affecting solubility Concentration (molarity, molality) Volume/mole relationships in chemical reactions, Raoult’s Law; nonideal solutions Colligative Properties Ch. 11 Ch. 23 15. Synthesis and Analysis of Alum (Vernier #15) 16. Conductimetric Titration and Gravimetric Determination of a Precipitate (Vernier #16) Ch 12 4. Freezing Point Depression (Vonderbrink #8) 2.5 2.5 2.5 Unit 13: Chemical Kinetics Topics Concept of rate of reaction Use of experimental data and graphical analysis to determine reactant order, rate constants, and reaction rate laws Effect of temperature change on rates Energy of activation and the role of catalysts Relationship between the rate-determining step and a mechanism Unit 14: Chemical Equilibrium Topics Dynamic equilibrium as a concept, physical and chemical Concept of LeChatelier’s principle Concept of equilibrium constants Equilibrium constants for gaseous reactions, Kp, Kc. Equilibrium constants for reactions in solutions. Constants for acids and bases; pK, pH Solubility product constants and their application to precipitation and the dissolution of slightly soluble compounds Unit 15: Acid-Base Equilibrium; Buffers Dissociation of water; equation Topics Review of acid-base reactions Arrhenius, Brønsted-Lowry, Lewis acids.bases Amphoterism pH as a measure of acidity Calculating pH from molarity Strong and weak acids and bases (Acid and conjugate bases) Interpreting and using ionization constants Common ion effect Buffer solutions; preparation Acid-base titrations Indicators Solubility product constants and their application to precipitation and the dissolution of slightly soluble compounds Common ion effect; buffers, hydrolysis Ch. 13 12. Decomposition of Hydrogen Peroxide (Vernier #12) Ch. 14 10. Determination of an Equilibruim Constant (FeSCN2+) Using a Spectrophotometer (van Koppen #14 adapted for Vernier Spectroviz) 17. Beers Law (Vernier #17) Ch. 4-7 Ch. 15 Ch. 16 11. Investigating Indicators (Vernier) 6, 7. Antacid Analysis and the Determination of the Percent Acetic Acid in Vinegar includes standardization of a primary NaOH solution (van Knoppen #15) 19. Acid-Base Equilibria: Determination of Acid Ionization Constants (van Knoppen #16) 2 1 2 2 Unit 16: Chemical Thermodynamics Topics Three laws of thermodynamics Spontaneous reactions and entropy Second law of thermodynamics; changes in entropy Gibbs free energy (free energy of reaction) Dependence of change in free energy on enthalpy and entropy changes Relationship of change in free energy to equilibrium constants Unit 17: Organic and Biochemistry Structure, nomenclature, and chemical properties of hydrocarbons and their functional groups Structural isomerism of simple organic molecules Unit 18 Electrochemistry Topics Electrolytic and galvanic cells Faraday’s laws Standard half-cell potentials Nernst equation Predicting direction of redox reactions Relationship of change in free energy to electrode potentials Test Review Ch. 17 9 Determining Mole Ratios in a Chemical Reaction (Vernier #9) Ch. 24 22. Synthesis of Aspirin/Wintergreen (van Knoppen #22) Ch. 18 20. Determination of Electrochemical Series (Vernier #20) 21. Measurements using electrochemical cells (Vernier #21)