Chem 1156 - General Chemistry II / Spring 2007 Instructor: Dr. Kathy Thrush E-mail: Kathleen.Thrush@villanova.edu Office Location: Mendel 216F Office Phone Number: (610) 519-7415 Office Hours: Monday & Wednesday 12:30 – 1:30 pm; Friday 10:00 – 11:15 am; Other times by appointment Web Site: http://www.homepage.villanova.edu/kathleen.thrush LECTURES: Monday, Wednesday and Friday 11:30 am - 12:20 pm, Mendel 154 RECITATION SECTIONS: Thursday 1156-007 11:30 am – 12:20 pm, Mendel 213 1156-008 1:00 pm – 1:50 pm, Mendel G90 1156-009 2:30 pm – 3:20 pm, Mendel 260 PRE-REQUISITE: Chemistry 1103 / General Chemistry Lab and Chemistry 1151 / General Chemistry I REQUIRED TEXT: Chemistry, 9th edition, by Raymond Chang, McGraw-Hill Higher Education (ISBN # 007-322103-1) OPTIONAL COURSE MATERIALS: Student Study Guide for use with Chemistry 9th edition (ISBN # 0-07298062-1); Student Solutions Manual for use with Chemistry 9th edition (ISBN # 0-07-298061-3); previous quizzes, mid-term exam, hand-outs, and MS PowerPoint presentation files are available on the instructor’s homepage; and Chang website (no password is needed) at: http://highered.mcgraw-hill.com/classware/selfstudy.do?isbn=0072980605 . COURSE OBJECTIVE: This is the second semester of a yearlong course. We will be covering most of the latter chapters of the text. You are taking this course because the field of chemistry fascinates you and/or you need to take chemistry as part of a degree requirement for you major. It is designed to familiarize you student with general qualitative and quantitative aspects of chemical sciences. It should also provide you with tools for solving scientific problems in the context of chemistry. As the course progresses, attempts will be made to draw parallels with the theory of chemistry to everyday situations in life. The course will require consistent study on your part. You are encouraged to preview the relevant material prior to lecture (as outlined later in this syllabus) and the corresponding problems at the end of each chapter. You are expected to complete the homework problems before each recitation section. Please keep in mind that if you are having problems with the material, there are many sources of outside class assistance that are available to you. Remember, that unlike in High School, the instructor will not be continually goading you to study the material. A good rule of thumb for any course is that for each hour of class time, you should spend 3 hours outside of class studying (or about 10 hours each week). CLASS ATTENDANCE / PARTICIPATION: Lecture and recitation attendance is mandatory as outlined in the Villanova University Blue Book. Attendance will be noted each class period. In the case of an absence, the instructor expects a written explanation in the next scheduled lecture. If you are sick, go to the Health Center. The staff will be happy to help you and will provide you with written documentation. Abuse of the privilege of “excusable absences” will not be tolerated and will be referred to the appropriate departmental faculty and/or the Dean of Arts and Sciences. Class participation is strongly encouraged. Not only does class participation make the classroom experience more interesting, but also your grade depends on it. Each student will be issued a class participation score from 0 to 50 points. EXAMS: There will be a total of eleven quizzes, one mid-term exam and a final exam. The exam dates are listed at the end of this syllabus. The mid-term and final exams will be comprehensive. Each quiz will be graded out of 30 points and the top ten quiz scores will be used to determine the course grade (300 total points). The mid-term exam will be graded out of 100 points. The final exam will be graded out of 200 points. The specific material covered in the exam will be indicated in the class prior to the exam. The format of exams will be a mix of multiple choice (MC) and show-your-work (SYW) problems. Normally, the exams will be graded and returned the class following the exam and any questions concerning an exam can be discussed during an appointment. Any person not attending the class following an exam will be responsible for making an appointment to pick up and discuss the exam result. The exam dates will not change. Make all appropriate arrangements to be in class on time on those days. There are NO makeup exams or quizzes and there should be no requests for extra credit assignments. If something unavoidable happens that requires you to miss a testing date, consult with the instructor BEFORE the exam or quiz to discuss your situation. All other absences on testing days must be accompanied by documentation of disastrous events. (These are described on the next page of this syllabus.) Alternate arrangements can be made, if your unavoidable absence is verified. COURSE GRADING: Each quiz will be graded out of 30 points. The mid-term exam will be graded out of 100 points. The final exam will be graded out of 200 points. The class participation score will be from 0 to 50 points. The course grade will be calculated as: Course Grade (%) = (quiz point total) + (mid-term exam) + (final exam) +(class participation score) x 100 %. 650 points The following scores will ensure the corresponding grades: 100%-90%: A, 89%-86%: A-, 85%-83%: B +, 82%-80%: B 79%-76%: B-, 75%-73%: C+, 72%-65%: C, 64%-55%: D, < 55%: F. The instructor reserves the right to modify the exact grading levels and to adjust point totals to reflect the grading of homework assignment. CALCULATORS: Calculators with Scientific Notation are required for in class exercises; therefore it is important that you bring your calculator to each class so that you can effectively participate in the learning process. You will require your own calculator for examinations, unless told otherwise. Sharing of calculators is not allowed. Direct passing of calculators between students will result in a score of ‘0’ for each student for the exam or quiz involved. You should ensure that your calculator is fully charged or has new batteries before each exam. LAPTOP COMPUTERS AND OTHER COMPUTERS: Laptop and other computers are not required, although many students find them quite helpful. Students may use laptops and other computer devices to access course information during class (especially for MS PowerPoint presentations). If a student is found to be using these devices for other purposes (such as, e-mail or instant messaging) during class time, their privilege to use these devices will be terminated. These devices may not be used during exams or quizzes. CELL PHONES: Cell phones can be very disruptive in class. Cell phones must be turned off during class time. If a student’s cell phone rings during a quiz or exam five (5) points will be deducted from their quiz or exam score. HOMEWORK: Practice, practice, practice !!! Homework assignments from the textbook are given later in this document. Additional homework problems may be given in separate handouts. They are to be considered the minimum number of problems you should be working in mastering the course material. Homework problems are typical of what you can expect on the examinations. Further, it should be realized that in class there is only a finite amount of time and hence limits the total number of examples that can be covered. If you have trouble with the homework assignments you should bring these questions to the recitation section or make an appointment to see me or contact me via e-mail. NO Chem 1156 lecture time will be devoted to working out specific listed or unlisted text problems. There is not enough time to go over every homework problem in the recitation sessions, so come to the session prepared with your questions. Satisfactory performance in this course requires that you regularly complete and understand the homework problems. It is important that YOU attempt to work the 2 homework problems on your own. Solutions can look much easier when someone else is working the problems. DROPPING THE COURSE: Failure to attend class will not constitute a drop of the course. Action on your part by filing a drop slip with the registrar is required; otherwise you will receive an “F” grade on your transcript. DOCUMENTATION OF DISASTROUS EVENTS: Disastrous events include serious and disabling accidents, doctor-mandated absences due to serious illness, and deaths or serious and disabling accidents in your family. In each of these cases, you are required to document the circumstances of the incident sufficiently so that the incident can be independently verified. Examples of relevant documents include copies of police reports, hospital admission papers, or a doctor’s note with an explanation of the circumstances. All of these must include name(s) and valid phone number(s) for independent verification. If you miss an exam due to avoidable circumstances (e.g., oversleeping, getting stopped for speeding, needing to go to work, needing to drop someone off or pick someone up, forgetting that there’s a test that day, vacation with family or friends, etc.), expect no allowances to be made. If you are late for an exam due to avoidable circumstances, plan on no extra time being provided. OFFICE HOURS: Office hours belong to the students. If your instructor is talking with another faculty member or doing something else, feel free to interrupt during office hours. If your instructor is talking with another student, please wait your turn. Four office hours are available each week for any student who has any questions or problems. Please take full advantage of office hour time by preparing specific questions prior to arrival. ACADEMIC HONESTY: It is perfectly acceptable, even advisable, for you to work and study with other people as you work to learn the material in this course. It is easier to accomplish what needs to be done; sometimes it’s even more fun. However, even if you study with others, you must demonstrate what you, yourself, have learned. Honest behavior includes, but is not limited to, the following: • Providing accurate representations of what you figured out, what you know, and what you understand. • Providing individualized solutions and distinctive written work on everything you turn in for credit. • Using only those materials explicitly allowed (e.g., mathematical calculators). • Seeking and following specific verbal and written directions and instructions. • Stopping when the time limit is announced during a timed test. • Resisting the temptation to ask someone else to do your work for you. • Declining requests to do another person’s work for them. • Resisting the temptation to copy someone else’s work -- especially if you are avoiding doing your own work. • Preventing anyone else from copying your work -- especially if that person is avoiding doing her/his own work. • Resisting the temptation to use unethical and/or illegal methods to gain an unfair advantage or to otherwise avoid doing your work. All suspicious behavior will be monitored. All suspicious activity or dishonest behavior will be investigated, and corrective measures will be taken. Penalties will apply to anyone violating this code of behavior. STUDENTS WITH DISABILITIES: Villanova University strives to provide an environment for personal and intellectual growth of all its students, and also complies with the Americans with Disabilities Act of 1990 and Section 504 of the Rehabilitation Act of 1973. In order to meet these commitments, Villanova offers educational opportunities and appropriate academic accommodations for the needs of qualified students with disabilities. Services for students with physical disabilities are provided by Multicultural Affairs (www.multiculturalaffairs.villanova.edu). Services for students with other disabilities (including 3 learning disabilities) that impact on learning are provided by various offices and coordinated by Learning Support Services (LSS). It is the policy of Villanova to make reasonable academic accommodations for qualified individuals with disabilities. If you are a person with a disability please contact me after class or during office hours as soon as possible, and make arrangements to register with the Learning Support Office by contacting 610-519-5636 or at nancy.mott@villanova.edu as soon as possible. Registration with the Learning Support Office is required in order to receive accommodations. ORDER OF TOPICS: Chapter 24 11 12 13 14 15 Topics Organic Chemistry - The Nature of Organic Molecules. Alkanes and Their Isomers. Drawing Organic Structures. The Shapes of Organic Molecules. Nomenclature. Families of Organic Molecules: Functional Groups. Chemical Reactions. Intermolecular forces and Liquids and Solids - Polar Covalent Bonds. Dipole Moments. Intermolecular Forces. Properties of Liquids. Phase Changes. Evaporation, Vapor Pressure, and Boiling Point. Kinds of Solids. X-Ray Crystallography. Unit Cells and the Packing of Spheres in Crystalline Solids. Structures of Some Ionic Solids. Structures of Some Covalent Network Solids. Phase Diagrams. Physical Properties of Solutions - Ideal and Real Solutions. Units of Concentration. Some Factors Affecting Solubility. Henry’s Law. Physical Behavior of Solutions: Colligative Properties. Vapor-Pressure Lowering of Solutions: Raoult's Law. Boiling-Point Elevation and Freezing-Point Depression of Solutions. Osmosis and Osmotic Pressure. Colloids. Chemical Kinetics - Reaction Rates. Rate Laws and Reaction Order. Experimental Determination of a Rate Law. Integrated Rate Law for a First-Order Reaction. Half-Life of a First-Order Reaction. Second-Order Reactions. Reaction Mechanisms. Rate Laws and Reaction Mechanisms. Reaction Rates and Temperature: The Arrhenius Equation. Using the Arrhenius Equation. Catalysis. Chemical Equilibrium - The Equilibrium State. The Equilibrium Constant – K, Kc & Kp. Heterogeneous Equilibria. Using the Equilibrium Constant. Factors That Alter the Composition of an Equilibrium Mixture. Altering an Equilibrium Mixture: Changes in Concentration. Altering an Equilibrium Mixture: Changes in Pressure, Volume and Temperature. The Effect of a Catalyst on Equilibrium. The Link between Chemical Equilibrium and Chemical Kinetics. Acids and Bases - The Brønsted-Lowry Theory. Acid Strength and Base Strength. Hydrated Protons and Hydronium Ions. Dissociation of Water. The pH Scale. Measuring pH. The pH in Solutions of Strong Acids and Strong Bases. Equilibria in Solutions of Weak Acids. Calculating Equilibrium Concentrations in Solutions of Weak Acids. Percent Dissociation in Solutions of Weak Acids. Polyprotic Acids. Equilibria in Solutions of Weak Bases. Relation between Ka and Kb. Acid-Base Properties of Salts. Factors That Affect Acid Strength. Lewis Acids and Bases. Textbook Homework Problems 3, 5, 6, 11, 12, 13, 14, 16, 23, 24, 25, 26, 27, 28, 31, 32, 34, 36, 38, 41, 42, 51, 59, 60, 66 1, 4, 6, 8, 9, 10, 12, 13, 14, 16, 18, 19, 28, 29, 32, 33, 34, 38, 39, 41, 42, 43, 44, 50, 51, 52, 55, 59, 64, 65, 74, 75, 76, 78, 79, 80, 81, 84, 86, 87, 88, 90, 93, 94, 95, 99, 100, 102, 103, 108, 122, 134 9, 10, 11, 15, 16, 17, 19, 22, 23, 27, 28, 34, 36, 37, 51, 52, 53, 54, 57, 59, 61, 63, 65, 66, 68, 71, 73, 74, 75, 76, 78, 81, 82, 86, 88, 92, 94, 96, 104, 106, 111, 116, 119 6, 7, 8, 12, 13, 15, 17, 18, 19, 20, 21, 27, 28, 29, 30, 34, 35, 37, 38, 40, 42, 44, 46, 47, 49, 50, 51, 52, 53, 54, 60, 62, 63, 64, 66, 67, 68, 71, 73, 74, 76, 78, 80, 81, 84, 89, 92, 97, 100, 102, 106, 109, 110 7, 8, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 30, 32, 33, 35, 39, 40, 41, 42, 44, 45, 46, 47, 49, 54, 55, 58, 60, 63, 64, 65, 68, 72, 73, 74, 78, 84, 86, 92 3, 4, 5, 6, 8, 10, 15, 16, 17, 18, 19, 21, 22, 24, 25, 33, 34, 35, 36, 39, 43, 44, 45, 46, 47, 48, 49, 50, 52, 53, 54, 56, 57, 58, 60, 62, 64, 65, 66, 67, 68, 71, 72, 74, 76, 78, 79, 82, 83, 85, 86, 88, 89, 91, 95, 96, 98, 100, 106, 107, 118 4 16 18 19 Acid-Base Equilibria and Solubility Equilibria Neutralization Reactions. The Common-Ion Effect. Buffer Solutions. The Henderson-Hasselbalch Equation. pH Titration Curves. Strong Acid-Strong Base Titrations. Weak AcidStrong Base Titrations. Weak Base-Strong Acid Titrations. Polyprotic Acid-Strong Base Titrations. Solubility Equilibria. Measuring Ksp and Calculating Solubility from Ksp. Factors That Affect Solubility. Precipitation of Ionic Compounds. Separation of Ions by Selective Precipitation. Qualitative Analysis. Entropy, Free Energy, and Equilibrium - Spontaneous Processes. Enthalpy, Entropy, and Spontaneous Processes: A Brief Review. Entropy and Probability and Temperature. Standard Molar Entropies and Standard Entropies of Reaction. Entropy and 2nd Law of Thermodynamics. Free Energy. Standard Free-Energy Changes for Reactions. Standard Free Energies of Formation. Free-Energy Changes and Composition of the Reaction Mixture. Free Energy and Chemical Equilibrium. Variation of G with temperature. Electrochemistry – Electrochemistry. Balancing redox reactions. Galvanic Cells. Electrolytic Cells. Shorthand Notation for Galvanic Cells. Cell Potentials and Free-Energy Changes for Cell Reactions. Standard Reduction Potentials. Using Standard Reduction Potentials. Cell Potentials and Composition of the Reaction Mixture: The Nernst Equation. Electrochemical Determination of pH. Standard Cell Potentials and Equilibrium Constants. Batteries. Corrosion. Electrolysis and Electrolytic Cells. Commercial Applications of Electrolysis. Quantitative Aspects of Electrolysis. 5, 6, 9, 12, 13, 14, 15, 16, 17, 19, 20, 22, 23, 24, 25, 26, 28, 29, 30, 35, 36, 37, 38, 40, 42, 45, 46, 47, 48, 51, 52, 54, 55, 59, 60, 62, 64, 65, 66, 67, 68, 73, 74, 76, 80, 81, 82, 84, 85, 87, 90, 91, 93, 97, 99, 102, 106, 110, 113, 118, 120 5, 9, 10, 12, 13, 17, 18, 19, 20, 23, 24, 26, 27, 28, 31, 32, 37, 38, 46, 52, 53, 56, 57 1, 2, 3, 5, 11, 12, 13, 15, 16, 18, 21, 22, 24, 25, 26, 29, 30, 32, 34, 46, 47, 51, 52, 53, 55, 56, 58, 61, 62, 64, 66, 67, 73, 78, 88, 110 SEMESTER RECESS / HOLIDAYS: Monday, March 5 – Friday, March 9 – Spring Break Thursday, April 4 – Monday, April 10 – Easter Break Tuesday, May 1 – Lecture FINAL DAY OF CLASS: Thursday, May 3 OPTIONAL REVIEW SESSION: Time & place TBA – Tuesday, May 8th ??? EXAMS: Quiz #1 – Friday, January 26 Quiz #2 – Friday, February 2 Quiz #3 – Friday, February 9 Quiz #4 – Friday, February 16 Quiz #5 – Friday, February 23 Mid-Term Exam - Friday, March 2 Quiz #6 – Friday, March 16 Quiz #7 – Friday, March 23 Quiz #8 – Friday, March 30 Quiz #9 – Friday, April 13 Quiz #10 – Friday, April 20 Quiz #11 – Friday, April 27 Final Exam – Wednesday, May 9 – 8:00 am - 10:30 am 5