Chemistry 102 section 2 Fall 2009

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1 Instructor: Carribeth Bliem, Lecturer Office: Kenan 147B, I am usually able to respond to questions within 24 hours. Class meetings: TH, 9:30-10:45 pm, Chapman Hall 211 Office hours: Mondays 10:00 11:30 am; Thursdays 11:00 noon. An evening review session will be scheduled prior to each exam. Textbook and Materials Chemistry: The Central Science, 10 th Edition, Brown, Lemay and Bursten (required) 11 th Edition also fine Solutions to Exercises (to accompany Chemistry: The Central Science), Roxy Wilson (optional) Scientific calculator (required) Blackboard This class will use the Blackboard e-education platform. Anyone enrolled in the course has access at by using your ONYEN. Please become familiar with Blackboard because I will send class s, post questions/answers on the discussion board as well as announcements during the semester. I will also post exam grades here so individuals will be able to confirm their grades. Exam Schedule Three midterm exams will be given during the semester; the chapter coverage shown below is approximate: Tuesday, September 22 (Ch 10-11, 13) Thursday, October 15 (Ch 14-15, 19) Tuesday, November 17 (Ch 16-17) The final exam will be given on Thursday, December 17, at 8 am (!), in Chapman Hall 211. It will include a section on new material (from Ch 20-21) AND a cumulative portion covering the entire semester. No make-up exams will be given. If you know that you will be absent on an exam day, you can make arrangements to take the exam early. Final exams can be rescheduled (for a date prior to 12/17) ONLY with a Dean s excuse and ONLY if arrangements are made before the last class of the semester (which is Tuesday, 12/8). All exams must be written in pen. If a mistake was made in the way a problem was graded, please hand the exam in to me so that the mistake can be corrected; this request must be made within one week of the exam being returned in class. However, frivolous requests for additional points are not appreciated or rewarded. Note that a fraction of exams are Xeroxed in their entirety prior to being returned to students. Page 1

2 Course Evaluation Course evaluation will depend on the number of midterm exams you take: If you take all three midterm exams (and earn at least 20% on each), you can drop the lowest score. Your course grade will be determined by weighting each of the two highest midterm scores 25%, WebAassign 15%, and the final exam 35%. If you take only two midterm exams (and earn at least 20% on both), your course grade will be calculated as above. If you take only one midterm exam, your course grade will be determined by weighting the midterm score 25%, WA 15%, and the final exam 60%. Note: you must sit for at least one midterm. At the end of the semester, each student s scores will be calculated and then converted to a percentage score. Course grades will be assigned according to the following scale: Percentage score Course grade A A B B B C C C D < 50 F According to the UNC-CH Undergraduate Bulletin and the Registrar s website, permanent grades are defined as follows: A Mastery of course content at the highest level of attainment that can reasonably be expected of students at a given stage of development. The A grade states clearly that the student has shown such outstanding promise in the aspect of the discipline under study that he/she may be strongly encouraged to continue. B Strong performance demonstrating a high level of attainment for a student at a given stage of development. The B grade states that the student has shown solid promise in the aspect of the discipline under study. C A totally acceptable performance demonstrating an adequate level of attainment for a student at a given stage of development. The C grade states that while not yet showing any unusual promise, the student may continue to study in the discipline with reasonable hope of intellectual development. D A marginal performance in the required exercises demonstrating a minimal passing level of attainment for a student at a given stage of development. The D grade states that the student has given no evidence of prospective growth in the discipline; an accumulation of D grades should be taken to mean that the student would be well advised not to continue in the academic field. F For whatever reasons, an unacceptable performance. The F grade indicates that the student's performance in the required exercises has revealed almost no understanding of the course content. A grade of F should warrant an adviser's questioning whether the student may suitably register for further study in the discipline before remedial work is undertaken. Page 2

3 Webassign Online homework problems will be assigned every week except exam weeks. You must purchase an access code at the bookstore or online in order to begin. You can access Webassign at using your onyen as your username, unc as the institution, and your PID as your initial password. It is imperative that you let me know by Thursday, August 27, at noon, if you are unable to log onto Webassign. If you have not used Webassign before, read the Student Guide to WebAssign and complete the Intro to WebAssign 2009 Assignment by 9:30 am, Thursday, August 27. Starting August 28, assignments will be available on Friday mornings at 6:00 am and close Mondays at 1:00 pm. At the end of the semester, each student s points will be added up and scaled to a percentage correct out of the total number of points assigned. No late assignments will be accepted for any reason, including computer problems. If you disagree with Webassign s scoring, you can submit a Webassign Dispute Form, found on blackboard, within one week of the assignment s due date. All Webassignments should be submitted by you alone. Any collaboration is a violation of the student Honor Code. It is also a violation of the Honor Code to observe another student violating this policy and not report it to the instructor. Honor Code Policy adopted by the faculty of the Department of Chemistry on September 9, 1977: Since all graded work (including homework to be collected, quizzes, papers, mid-term examinations, final examinations, research proposals, laboratory results and reports, etc.) may be used in the determination of academic progress, no collaboration on this work is permitted unless the instructor explicitly indicates that some specific degree of collaboration is allowed. This statement is not intended to discourage students from studying together or working together on assignments which are not to be collected. Please note that it is an Honor Code violation to register for a class for which you do not have the appropriate prerequisites. It is also a violation to use cell phones in class. Working problems Working problems is the best way to understand the course material. It s also excellent practice so that you can demonstrate your knowledge on exams. Unless otherwise noted in class, you are responsible for material covered in Chapters 10, 11, 13-17, of the textbook (see schedule). I recommend that students complete all red problems in these chapters, at a minimum. However, you may find it beneficial to work additional problems as well, especially on specific concepts. Answers to the black problems will be posted on blackboard; however, please do not share this resource with students not enrolled in this section of Chem 102. I strongly encourage you to work together as you study the material. Study groups can be a very beneficial way to make sense of the concepts and understand problem-solving. Page 3

4 Other tips for succeeding in this class Attendance is highly recommended. While I will not take attendance, I expect you be present at all lectures and to participate actively by taking notes and asking questions. Past experience has shown a correlation between class attendance and performance on exams. You are responsible for all information and material presented in class sessions. In addition to attending lectures, I will expect that you come prepared; you should read the assigned sections prior to each class (see course schedule below). Each class session, we will spend approximately 45 minutes discussing new concepts, followed by problem solving of those same concepts. When you have questions, the Chemistry Department offers the Resource Center (Kenan 143), a free tutoring service. Staffed by upperclassmen, grad students and faculty, the Resource Center is set up to provide help on General Chemistry topics. Please stop by whenever you have a question. Hours this semester (tentative) are Monday-Thursday, 1 pm 6 pm. Additional Chem 102 help can be found through UNC s peer tutoring program; upperclassmen who performed well in chemistry are available to answer your questions on a first-come first-served basis. This free service is available in Dey Hall on Tuesday and Wednesday evenings, 6-9 pm. You can also contact the Learning Center ( ) to schedule individual appointments with tutors. A list of Chemistry Department graduate students who are willing to tutor for pay is available at Useful Websites Blackboard Webassign UNC Chem Dept Webelements Textbook (handy internet guide to the periodic table) Check out the problem-solving center, available by chapter, for lots of multiple-choice and short answer problems. AP Chem Questions More chemistry problems by topic. Page 4

5 Course Schedule Below is a tentative schedule of topics. Please note that the schedule (wrt topic) is subject to change; all changes will be announced in class and on blackboard.unc.edu. Day Date Lecture material Text T 8/25 Introduction to course Chapter 10: Kinetic theory of matter, pressure, the gas laws , H 8/27 Chapter 10: The ideal gas equation and its applications T 9/1 Chapter 10: Gas mixtures, effusion, diffusion, and real gases H 9/3 Chapter 11: Intermolecular forces (review Chapter : VSEPR theory and molecular shapes) T 9/8 Chapter 11: Properties of liquids, phase changes and phase diagrams H 9/10 Chapter 11: Structures of solids T 9/15 Chapter 13: Units of concentration and the solution process, solubility H 9/17 Chapter 13: Colligative properties and colloids T 9/22 Midterm 1 H 9/24 Chapter 14: Rates of chemical reactions, effect of concentration T 9/29 Chapter 14: Integrated rate laws and temperature dependence H 10/1 Chapter 14: Reaction mechanisms and catalysts Chapter 15: Equilibrium and the equilibrium constant T 10/6 Chapter 15: Calculating and using equilibrium constants, Le Chatelier s principle H 10/8 Chapter 19: Spontaneity and entropy, entropy changes T 10/13 Chapter 19: Gibbs free energy and the equilibrium constant H 10/15 Midterm 2 M 10/19 LAST DAY TO DROP COURSE T 10/20 Chapter 16: Definitions, ph scale, strong acids H 10/22 Fall break T 10/27 Chapter 16: Weak acids and bases H 10/29 Chapter 16: More acid-base equilibria, Lewis acids T 11/3 Chapter 17: Common ion effect and buffers H 11/5 Chapter 17: Acid-base titrations, solubility T 11/10 Chapter 17: Solubility of salts and precipitation reactions H 11/12 Catch-up day T 11/17 Midterm 3 H 11/19 Chapter 20: Redox reactions, electrochemical cells T 11/24 Chapter 20: Cell EMF and free energy H 11/26 Thanksgiving T 12/1 Chapter 21: Introduction to radioactivity H 12/3 Chapter 21: Rates of decay, fission and fusion T 12/8 Review H 12/17 Final Exam, 8 am Page 5

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If you have problems logging in go to Trinity Valley Comm College Chem 1412 Internet Class Fall 2010 Wm Travis Dungan Room A103A, phone number 903 729 0256 ext 251 (Palestine campus) Email address: tdungan@tvcc.edu Getting started: Welcome