142U, CHEMISTRY AUTUMN 2001
Lectures: MTWTh 5:30 - 6:20, Bagley 131 Course Web Site: http://depts.washington.edu/chemcrs
Lecturer: Professor Craig Beeson, CHB 204B [phone], <[e-mail]>, Office Hour: Tuesdays, 4:30-5:20 in CHB 204B Texts and Supplies: Except where specified, all are available from the University Bookstore 1. Martin Silberberg, Chemistry: The Molecular Nature of Matter and Change (2nd Edition 2. Chemistry 142 Laboratory Manual, available at the Copy Center in Odegaard Library 3. Bound Laboratory Notebook and Safety Goggles 4. Scientific Calculator 5. Web Assign Access Card Academic Ethics Original work performed in good faith is assumed on all laboratories/exams/worksheets. In addition, it is presumed that the data you record and report in laboratory is done by your own hand. University rules (Handbook, Vol. IV, Part 9, Chapter 1, Executive Order #61) define scientific and scholarly misconduct to include the following forms of inappropriate activities: * Intentional misrepresentation of credentials * Falsification of data * Plagiarism Failure to adhere to this code of ethics will result in prosecution to the fullest extent (see http://www.washington.edu/students/handbook/conduct.html for specifics). In short, if you have not done something yourself, do not attempt to pass it off as original work. Lectures: An approximate schedule is given above as to the chapters to be covered each week. You are responsible not only for material covered in the text, but also for information covered in class. Attendance of lectures is required. It is estimated that you lose 0.1 GPA for each lecture missed. You are expected to read the material to be covered prior to the lecture. Quiz Sections: Quiz sections activities include collection and return of graded work, TA led review and a quiz. Please note that quizzes account for a significant portion of your grade. Homework: This course uses internet-based homework exclusively. You will both receive and submit your assignments online via the internet. The internet interface is called "Webassign' and can be found at http://www.webassign.net. Webassign is operated by a third-party organization and is not the property of the University of Washington. Webassign is available from any computer connected to the internet provided you have Internet Explorer or Netscape Navigator. It does NOT work with the standard AOL browser. To use the Webassign, you need to purchase an access card from the University Bookstore for $4.25. The cards are held at the Bookstore information counter. The cards are good for the entire quarter, and are non-refundable. To log on to the internet homework, you need to have a University of Washington internet id. The internet id is set up at https://uwnetid.washington.edu/newid/. Complete instructions for using Webassign are found in The Student Guide to Webassign, which is available on the Chemistry Department Web page at http://depts.washington.edu/chemcrs/index.html and as an appendix in the lab manual. Click on Chemistry 142, and then select course attachments. These instructions are also found in the Chem. 142, Chem. 152 and Chem. 162 laboratory manual. If you have difficulty logging on, go to the chemistry study center (Bagley 330) for help. The internet-based homework is designed to give you individual assignments (the numbers for the assigned problems will change each time). Grading of the assignment is instant and automatic. You will also have the ability to re-work and re-submit problems a total of five times. Midterm Exams: Bring a number 2 pencil, a 3 x 5 card of notes, your calculator, and a photo ID to all exams. There will be two midterm examinations given on the dates listed in the course schedule. Each will consist of 100 points and cover the chapters from the text and laboratory experiments as listed in the course schedule. However, because knowledge of chemistry is cumulative, questions on exams will often depend on knowledge from earlier chapters. You must sit according to the seating charts, which will be posted on the walls in the front of the classroom a few days before the exam. Hour exams will be returned in the following quiz section. Keys to exams will be posted on the Chem 142 bulletin board in Bagley Hall and also on the class web site. If you wish your exam to be re-graded, it must be given to your TA within 48 hours of its return to you (exclude weekends) along with a note explaining what you want reconsidered. Note that we reserve the right to re-grade the entire exam and so you may lose rather than gain points. If you are absent from a midterm (one hour) examination through sickness or other cause judged to be unavoidable, the weight of your final exam will be increased proportionately in calculating the course grade. Examples of unavoidable cause include illness, death or serious illness in the immediate family, and, provided previous notification is given, observance of regularly scheduled religious obligations and attendance at academic conferences or field trips, or participation in university-sponsored activities such as debating contests or athletic competition. You must report your absence from an hourly examination within 72 hours to Dr. Tracy Yerian ([e-mail]) in Bagley 195A, and bring proof of your unavoidable cause (a doctor's note, an accident report, 1
a memorial folder, or similar documentation). The documentation must include a contact name and telephone number. Dr. Yerian will notify the instructor of the status of your absense. If your absence does not meet the above criteria, you will be given a zero for the exam. If you are absent from the final examination, and you are ineligible for an incomplete according to the UW regulations, a course grade of 0.0 will be given. If an incomplete is given, you must take the final exam for the same course in the next regular academic quarter in which it is offered to remove the incomplete. Bulletin Board: A bulletin board in Bagley Hall has been reserved for this class. The exam "keys" will be posted following each examination. The class web site will also have most or all of the bulletin board postings. Course Web Site: http://depts.washington.edu/chemcrs The web site will house all course related materials including the syllabus, exams and exam keys (old and current), notices and announcements. A class ranking will be posted following each examination. Students are asked to check their grades, which are listed by last four digits of the student number, to make sure they are correct. Any discrepancies noted should be brought to the attention of your Teaching Assistant. Chemistry Study Center: The study center in housed in BAG 330. The study center provides you an opportunity to work and learn from fellow Chem. 142 students as well as receive help from the TA's. The hours are 9: 00 a.m. - 6:00 p.m., M-T and 9:00 a.m. - 2:00 p.m., F. The study center also has 30 'technology fee' computers for your use. Many of you will find the general chemistry programs on these computers useful and an interesting way to master the concepts presented in lecture. A photocopy machine is available at 10 cents per copy. TA Office hours: The TAs office hours will be posted on the bulletin board and on the course web site. You are free to attend any of the TA office hours. One of the advantages of having a linked class is that you have the same TA for the lab and lecture course. The TA is an important person to your success. Be sure to use the resources offered by TAs. the Show them respect and they will return it. They (or the professor) can clarify any questions you might have about the text (e.g., What do these words mean?) or the lecture material (e.g., I missed something or don't follow his logic here in my notes?) They can also spot your background weaknesses and help. Laboratory Some important considerations 1. You will not pass Chem. 142 without passing the laboratory portion of the course. Passing means 60% or higher. You must attend every laboratory session - no make-up lab is offered for Chem. 142. If an absence is unavoidable, please contact your TA (if possible in advance of the lab) and the stockroom (Bagley 271). A written note from a doctor is needed in the event illness prevents attending laboratory. See the laboratory manual for more details 2. One average, expect to spend one hour of out of lab time for each hour in lab. About one third of this time should go into prelaboratory work. 3. As best as we can, we have designed the experiments such that they reinforce the lecture portion of the course. You must stay current with the lecture portion of the course in order to have any chance of understanding these experiments. These experiments are not cookbook recipe. There is a reason and logic behind each of the operations. Lab Work Perform only assigned work. If any deviation from published procedures becomes necessary, first consult your TA. Safety: There is an element of hazard in any laboratory course. You are required to follow the safety rules as outlined in your laboratory manual. In particular you are required to wear approved safety goggles during all the experiments. If you do not wear your goggles while in the laboratory, you will not be allowed to perform the experiment and will receive a grade of 0 for that report. No open shoes, no shorts, no bare legs. Pre-labs 1. Web Assign Pre-lab Exercises should be completed at least one hour before lab. Print out a copy of your answer sheet and provide this to your TA as evidence that you have completed the assigned work. 2. The Purpose and Procedure sections of your notebook must be completed before your lab period. If you do not complete either one of the two, you will not be allowed to perform the experiment. Lab Notebook: Bound laboratory notebook with numbered pages (not loose leaf or spiral). All recording and reporting must be in this notebook IN INK. Line through your errors neatly instead of erasing or whiting out. On the first page of your notebook write (i) your name and student number, (ii) Autumn Quarter 2001, (iii) the course number, Chem. 142. Start the experiments on page 2. Write only on the right-hand page of the notebook while in the laboratory and for the purpose and procedure sections. Save the left hand pages of the notebook for calculations or comments added outside of laboratory. During the lab, record observations (data), perform all necessary calculations, and based on your results, come to some conclusion.
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Before You Leave the Lab: Your TA will check that you have completed all assigned work and he/she will initial your lab notebook. Based on performance (includes accuracy and precision), your TA will assign points. These points will be assigned for all experiments. Formal lab Report There is one experiment for which a formal report is required (see experiment schedule). The format for the formal report is given in the lab manual. The formal lab reports should be a concise account of your work, using your own words, your best English grammar, correct spelling and complete sentences, and should consist of 2-3 double-spaced typed or printed pages plus data tables and graphs (if appropriate). Other than the data being the same, your report should be different from that of your partner. You will be assigned zero for the lab component of the course if we find that you copied any part of somebody else's report. We do check across different sections and different classes. Experiments Exp. #1: Exp. #2 Exp. #3 Exp. #4 Safety Statistical Analysis of Experimental Data Composition of Two Compounds Stoichiometry of Reaction of Hydrogen Peroxide and Bleach Formal Report due in lab the following week Oxidation-Reduction Titration Molecular Weight of a Low Boiling Liquid QUIZ AND LAB SECTIONS Section UA UB UC UD UE UF UG UH UI UJ UK UL Day QZ LB QZ LB QZ LB QZ LB QZ LB QZ LB QZ LB QZ LB QZ LB QZ LB QZ LB QZ LB TH T TH T TH T TH T TH W TH W TH W TH W TH W TH W TH W TH W Time 230-320 630-920 330-420 630-920 630-720 630-920 630-720 630-920 230-320 230...