Advanced Placement Chemistry 2011-2012 Granbury High School Instructor and Contact Information Cindy Jackson Cindy.jackson@granburyisd.org School phone: 817-408-4600 Science office: 817-408-4636 Course Description The AP Chemistry course at Granbury High school emulates the first year of college chemistry in breadth and rigor. The goal of this course is to prepare the student to become an independent thinker functioning in a scientific, technological society with an appreciation for the natural world. Through discussions, lecture, and laboratory experimentation, the aim of AP Chemistry is to sharpen the student’s ability to think critically, solve problems and communicate effectively. The student will be expected to demonstrate development of these abilities through completing assignments, class presentations, assessments, informal and formal written reports and ultimately an acceptable score on the AP Chemistry Examination in May. Text Chemistry by Zumdahl and Zumdahl, 5th ed., Houghton Mifflin Company, 2000. General Chemistry: During Class Inventions & Computer Lab Activities Volumes I & II by Abraham, Gelder, and Greenbowe, 3rd ed., Hayden-McNeil, 2009. The Ultimate Chemical Equations Handbook by Hague and Smith, Flinn Scientific, Inc., 2001. Laboratory Experiments for Advanced Placement Chemistry by Sally Ann Vonderbrink, Flinn Scientific, Inc., 2003 Requirements and Expectations Students are expected to be in class on time with the required materials. The AP Chemistry class meets five 55-minute periods each week. To be successful in this class, it will be necessary for students to study and practice problems in chemistry outside of class, at the very least, one hour per day. Homework assignments will be assigned to provide students with opportunities for study and practice. Most of the time, homework will not be graded. Mastery of process skills and concepts will be assessed based on performance on quizzes and tests. The AP chemistry student is expected to seek help outside of class if he/she is struggling with a particular concept or problem-solving process. I will be available before and after school if a student needs help or needs a quiet place to work. I have an open-door policy to all my students, so it is advised NOT to wait until the day an assignment is due or the day before a test to get help. In each laboratory experiment, students will physically manipulate equipment and materials, make observations, collect and analyze quantitative and qualitative data, use the data to form conclusions and verify hypotheses. Also, students will communicate and compare lab results and procedures through collaboration, presentations, and formal written reports. Students will be expected to keep a formal laboratory notebook. Each student will be provided with a carboncopy lab notebook. The lab experiments will come from sources equivalent to labs encountered in a first-year college chemistry course. Approximately 1-2 periods per week will be devoted to time in lab; however, students will be required to spend time outside of class time in the lab completing practical portions of labs and data collection in many cases. Test and quiz corrections are encouraged for all students, but are required for any student making a failing grade on an exam. Points will be awarded on the test grade for corrections completed correctly. Grading Guidelines Minor Grades Daily work Homework and daily work is self-checked and may sometimes count as a minor grade. It is expected to be on time, and any late work will only be granted half credit. Laboratory grade Labs will be graded with each lab and count as one or two minor grades. Lab work is assessed in many ways, such as formal/informal lab reports and class presentations of data and results. Any late reports will be docked 10 points per day late. Quizzes Quizzes count as a minor grade, and are designed for students to spot areas that need special attention before a major exam. Major Grades Tests Major tests will count as a major grade. The tests will follow the AP exam format, and questions will come from previously released AP exams. Generally, students can expect an exam 2-3 times per six-weeks depending on material being covered. Projects Projects may count as two minor grades or one major grade depending on the nature of the project. Chemistry Topics Covered: Fall semester Time (weeks) Zumdahl reference Topics 2 Chapter 1,2,3 Lab Safety Nomenclature of simple Compounds Stoichiometry Molecular Weight Percent Composition of compounds The Mole and Molar Mass Balancing Chemical Equations Limiting Reactant and Percent Yield Empirical and Molecular Formulas from Experimental Data Combustion Analysis AP Curriculum requirements IV 2 Labs V (AP recommended experiments) 1. Empirical formula of an unknown compound (#1) [CBL- Abraham, Gelder, et al.] 2. III B 2,3 Analysis of Alum (#2) Time (weeks) 2 Zumdahl Chapters Chapter 2 Chapter 3 Chapter7 Topics AP Curriculum requirements Atomic Theory History of Atomic Theory o Early history o Dalton’s Atomic Theory o Early Experiments: Evidence for Atomic Theory Modern view of the atom o Atomic and Mass Number; Isotopes o Atomic Masses: Determination by chemical and Physical Means Electromagnetic Radiation Atomic Spectra Electronic Structure o Bohr Model o Quantum Mechanical Model o Quantum Numbers o Orbital Shapes and Energies o Pauli’s Exclusion Principle Aufbau Principle and the Periodic Table o Orbital-filling Rules o Electron Configurations Periodic Trends and atomic Properties o Atomic and Ionic Radii o Ionization Energy o Electron Affinity o Electronegativity Review of the Periodic Table o Ion Formation o Properties of a group Alkali metals Alkaline earth metals Halogens Transition metals Noble gases IA 1,2,3,4,5 Labs V (AP recommended experiments) 1. Gravimetric Analysis of a Metal carbonate (#16) Time (weeks) Zumdahl reference Topics Chemical Bonding 2 Chapter 8 Chapter 9 3 AP Curriculum requirements Chapter 4 Octet Rule Electron configurations of ions Ionic Bonding o Lattice energy o Properties of ionic solids Covalent Bonding o Electronegativity & bond polarity o Lewis Structures o Exceptions to the octet rule o Formal Charge o Bond energy and bond length o Resonance structures o VSEPR model o Valence Bond Theory o Hybrid Orbital Theory Molecular geometry (molecules & ions) o Molecular polarity: solubility in water o Multiple bonds Sigma and pi bonds Labs V (AP recommended experiments) 1. Finding the Ratio of Moles of Reactants in a Chemical Reaction (#9) 1. An Activity Series (#20) 2. Oxidation-reduction Titration (#8) I B 1 a,c IB2 a,b,c IB3 II B 4 IV 2 Aqueous Solutions and Chemical Reactions Solutions Concentration: molarity Solubility Precipitation Reactions o Solubility Rules o Ionic Equations REDOX Reactions o Oxidation Numbers o Half reactions o Balancing REDOX equations o Activity Series o Single displacement reactions Synthesis Reactions Decomposition Reactions Combustion Reactions III A 2 III A 3a III B1 III B 2 IV 1 Time (weeks) Zumdahl Chapters Topics Thermodynamics 2 Chapter 6 Chapter 16 2 Chapter 13 Equilibrium Chapter 16 1 Chapter 22 State Functions First Law of Thermodynamics Enthalpy of Reaction Enthalpy change o Calorimetry o Hess’s Law o Enthalpy of Formation o Average Bond enthalpy Second Law of Thermodynamics Entropy Free Energy o Free energy of reaction o Dependence of free energy on enthalpy and entropy changes o Free energy of formation Chemical dynamic equilibrium Law of mass action for systems at equilibrium Equilibrium constant and reaction quotient Equilibrium constants for gaseous reactions o Involving pressure (Kp) o Involving concentration(Kc) LeChatelier’s principle o Effect of change in concentration o Effect of change in pressure Effect of change in temperature Relationship of equilibrium constant and change in free energy Organic Chemistry *** Alkanes: saturated hydrocarbons o Isomerism in alkanes o Nomenclature o Reactions of alkanes (chemical properties) o Cyclic alkanes Alkenes and alkynes o Isomerism o Reactions (chemical properties) Aromatic hydrocarbons Functional groups o Alcohols o Aldehydes and ketones o Carboxylic acids and esters o Amines Polymers Labs V (AP recommended experiments) AP Curriculum requirements III E 1,2,3,4 1. Thermodynamics – Enthalpy of Reaction and Hess’s Law (#13) 1. Spectrophotometric Analysis of the Cobalt II Ion [AP Solutions] (#17) 2. The determination of Keq for FeSCN(#10) IV 1 III C 1,2a III E 4 IV 1 IB3 IV 3 Time (weeks) 1.5 Zumdahl Chapters Chapter 5 Topics Gases 1 AP Curriculum requirements Labs V (AP recommended experiments) II A 1a,b Pressure Boyle,s, Charles’, and Avogadro’s Law Ideal gas law: equation of state for gas Gas stoichiometry Dalton’s Law of partial pressures Kinetic molecular theory o Theory applied to gas laws o Deriving the ideal gas law o Dependence of kinetic energy on temperature and how it relates to pressure Graham’s law of effusion Diffusion Real gases: deviations from the ideal gas law Chemistry in the atmosphere Review & Final Exams II A 2a,b,c,d IV 1 1. Determination of Molar Mass of Volatile Liquids (#3) 2. Molar Volume of a Gas (#5) Spring Semester Time (weeks) Zumdahl Chapters Topics Intermolecular Forces 2 Chapter 10 Intermolecular forces o Dipole-dipole forces: hydrogen bonding o Vander Waals forces: London dispersion forces Liquid state: structural model for liquids Structure and types of solids o Unit cells and crystal packing o Crystalline solids o Structure and bonding in metals o Calculating density in closest packed solid o Network solids o Molecular and ionic solids o Determining the number of ions in a unit cell Vapor pressure and changes of state o Heat of vaporization and fusion o Vapor pressure Changes of state o Phase diagrams o Critical and triple point Solutions 2 Chapter 11 Sections 15.6-15.8 Solution composition o Mass percent o molarity o Mole fraction o Molality Solution saturation: physical equilibria Solubility equilibria and solubility product constant Relative solubilities Effect of hydrolysis on solubility Application to precipitation of slightly soluble compounds Factors effecting solubility o Structure effects o Pressure effects: Henry’s Law o Temperature effects on aqueous solutions Solubility curves Colligative properties o Calculations involving boiling point elevation and freezing point depression o Vapor pressure of solutions Raoult’s Law o Osmotic pressure Non-ideal solutions Aqueous systems: solutions, colloids, suspensions AP Curriculum requirements I B 1a,b Labs V (AP recommended experiments 1. Liquid chromatography (#18) 1. Molar mass by freezing point depression (#4) IB3 II B 1,2,3,4 III E 2 II C 1,2,3,4 III C 1 III C 2b(2) Time (weeks) Zumdahl Chapters 2 Chapter 17 Topics Electrochemistry 2 Chapter 12 Galvanic cells Standard Reduction potentials o Standard half cell potentials o Complete description of galvanic cells: prediction of direction of redox reaction Cell potential, electrical work, and free energy o Relationship of change in free energy and electrode potentials Dependence of cell potential on concentration o Concentration cells o The Nernst equation o Ion selective electrodes o Calculation of equilibrium constants for redox reactions Electrolysis o Electrolytic cells o Faraday’s Laws Chemical Kinetics Reaction rates Rate laws o Differential rate law o Integrated rate law Use of experimental data to determine rate constants, reactant order, and rate laws: o Determining the form of rate law Method of initial rates Determining a rate law o Integrated rate law First order rate laws Half-life of a first order reaction Second order rate laws Zero order rate laws Integrated rate laws for reactions with more than one reactant Factors that change the rate of reaction o Temperature o Concentration o Nature of a substance Energy of Activation Relationship between rate-determining step and the reaction mechanism Catalysts AP Curriculum requirements Labs V (AP recommended experiments III A 3b,c III E 4 1. Electrochemical cells (#21) 1. Kinetics of a reaction (#12) IV 1 III D 1,2,3,4,5 IV 1 Time (weeks) Zumdahl Chapters 5 Chapter 14 Topics Acids and Bases Chapter 15 1 Chapter 21 Nature of acids and bases o Arrhenius o Bronsted-Lowry model o Acid dissociation constant (Ka) Calculations involving pH of strong and weak acid solutions Water as an acid and base; amphoterism Percent dissociation Calculations involving pH of strong and weak bases The Lewis acid-base model Acid-base properties of salts and oxides Solutions of acids and bases: equilibrium calculations Common ion effect Buffered solutions including buffer capacity Complex ion formation Titration calculations and pH curves o Strong acid-strong base o Weak acid-strong base o Calculation of Ka o Weak base-strong acid o Acid-base indicators Nuclear Chemistry *** AP Curriculum requirements Labs V (AP recommended experiments III A 1 1. Acid – base titrations (#6, 7) III C 2b(1),(2),(3) 2. Selecting Indicators for acid-base titrations (#11) 3. Preparation and Properties of Buffer Solutions (#19) 1. Separation and Qualitative Determination of Cations and Anions (#14) IV 1 IC Nuclear stability and radioactive decay o Types of radioactive decay o Nuclear equations Kinetics of radioactive decay o Half-life Applications o Nuclear transformations o Carbo-14 dating o Medical applications Nuclear fusion and fission 3 AP Test Review & Exam 1 Final exam, practical or project AP Curriculum Requirements I. Structure of Matter (20%) A. Atomic theory and atomic structure 1. Evidence for the atomic theory 2. Atomic masses; determination by chemical and physical means 3. Atomic number and mass number; isotopes 4. Electron energy levels: atomic spectra, quantum numbers, atomic orbitals 5. Periodic relationships including, for example, atomic radii, ionization energies, electron affinities, oxidation states B. Chemical bonding 1. Binding forces a. Types: ionic, covalent, metallic, hydrogen bonding, van der Waals (including London dispersion forces) b. Relationships to states, structure, and properties of matter c. Polarity of bonds, electronegativities 2. Molecular models a. Lewis structures b. Valence bond: hybridization of orbitals, resonance, sigma and pi bonds c. VSEPR 3. Geometry of molecules and ions, structural isomerism of simple organic molecules and coordination complexes; dipole moments of molecules; relation of properties to structure C. Nuclear chemistry: nuclear equations, half-lives, and radioactivity; chemical applications II. States of Matter (20%) A. Gases 1. Laws of ideal gases a. Equation of state for an ideal gas b. Partial pressures 2. Kinetic molecular theory a. Interpretation of ideal gas laws on the basis of this theory b. Avogadro’s hypothesis and the mole concept c. Dependence of kinetic energy of molecules on temperature d. Deviations from ideal gas laws B. Liquids and solids 1. Liquids and solids from the kinetic-molecular viewpoint 2. Phase diagrams of one-component systems 3. Changes of state, including critical points and triple points 4. Structure of solids; lattice energies C. Solutions 1. Types of solutions and factors affecting solubility 2. Methods of expressing concentration (use of normalities is not tested) 3. Raoult’s law and colligative properties (nonvolatile solutes); osmosis 4. Nonideal behavior (qualitative aspects) III. Reactions (35–40%) A. Reaction types 1. Acid-base reactions; concepts of Arrhenius, Brønsted-Lowry, and Lewis; coordination complexes; amphoterism 2. Precipitation reactions 3. Oxidation-reduction reactions a. Oxidation number b. The role of the electron in oxidation-reduction c. Electrochemistry: electrolytic and galvanic cells; Faraday’s laws; standard half-cell potentials; Nernst equation; prediction of the direction of redox reactions B. Stoichiometry 1. Ionic and molecular species present in chemical systems: net ionic equations 2. Balancing of equations, including those for redox reactions 3. Mass and volume relations with emphasis on the mole concept, including empirical formulas and limiting reactants C. Equilibrium 1. Concept of dynamic equilibrium, physical and chemical; Le Chatelier’s principle; equilibrium constants 2. Quantitative treatment a. Equilibrium constants for gaseous reactions: Kp, Kc b. Equilibrium constants for reactions in solution (1) Constants for acids and bases; pK; pH (2) Solubility product constants and their application to precipitation and the dissolution of slightly soluble compounds (3) Common ion effect; buffers; hydrolysis D. Kinetics 1. Concept of rate of reaction 2. Use of experimental data and graphical analysis to determine reactant order, rate constants, and reaction rate laws 3. Effect of temperature change on rates 4. Energy of activation; the role of catalysts 5. The relationship between the rate-determining step and a mechanism E. Thermodynamics 1. State functions 2. First law: change in enthalpy; heat of formation; heat of reaction; Hess’s law; heats of vaporization and fusion; calorimetry 3. Second law: entropy; free energy of formation; free energy of reaction; dependence of change in free energy on enthalpy and entropy changes 4. Relationship of change in free energy to equilibrium constants and electrode potentials IV. Descriptive Chemistry (10–15%) Knowledge of specific facts of chemistry is essential for an understanding of principles and concepts. These descriptive facts, including the chemistry involved in environmental and societal issues, should not be isolated from the principles being studied but should be taught throughout the course to illustrate and illuminate the principles. The following areas should be covered: 1. Chemical reactivity and products of chemical reactions 2. Relationships in the periodic table: horizontal, vertical, and diagonal with examples from alkali metals, alkaline earth metals, halogens, and the first series of transition elements 3. Introduction to organic chemistry: hydrocarbons and functional groups (structure, nomenclature, chemical properties) V. Laboratory (5–10%) The differences between college chemistry and the usual secondary school chemistry course are especially evident in the laboratory work. The AP Chemistry Exam includes some questions based on experiences and skills students acquire in the laboratory: • making observations of chemical reactions and substances • recording data • calculating and interpreting results based on the quantitative data obtained • communicating effectively the results of experimental work AP Recommended Experiments 1. Determination of the formula of a compound 2. Determination of the percentage of water in a hydrate 3. Determination of molar mass by vapor density 4. Determination of molar mass by freezing point depression 5. Determination of a molar volume of a gas 6. Standardization of a solution using a primary standard 7. Determination of concentration by acid-base titration, including a weak acid or weak base 8. Determination of concentration by oxidation-reduction titration 9. Determination of mass and mole relationship in a chemical reaction 10. Determination of the equilibrium constant for a chemical reaction 11. Determination of appropriate indicators for various acid-base titrations; pH determination 12. Determination of the rate of a reaction and its order 13. Determination of an enthalpy change associated with a reaction 14. Separation and qualitative analysis of cations and anions 15. Synthesis of a coordination compound and its chemical analysis 16. Analytical gravimetric determination 17. Colorimetric or spectrophotometric analysis 18. Separation by chromatography 19. Preparation and properties of buffer solutions 20. Determination of electrochemical series 21. Measurements using electrochemical cells and electroplating 22. Synthesis, purification, and analysis of an organic compound