GENERAL CHEMISTRY, CHEM-1B, SPRING 2012 INSTRUCTOR: DR. RAM SUBRAMANIAM, SECTIONS: 03 AND 04 Instructor Contact Information Dr. Ram Subramaniam Office: SC 1222 De Anza College, Cupertino, CA Email: subramaniamram@deanza.edu Phone: 408-864-8517 Fax: 408-864-5515 Office Hours: MW 5-6 p.m. and F 9:30 to 10:30 a.m. Website: www.ramsubramaniam.com Class Meeting Lecture: SC 1102 Lecture time: Tuesday, Thursday, and Friday: 10:30 a.m. to 11:20 a.m. Lab lecture and Lab: SC 2204 Lab lecture and Lab time: Section 3- 7:30-10:00 a.m. & Section 4- 11:30 a.m.-2:00 p.m. Textbook Lecture- Chemistry: The Molecular Nature of Matter and Change Companion Site, 6/e, Martin S. Silberberg, ISBN: 0073402656, Copyright year: 2012 Lab- Microscale General Chemistry Laboratory, 2008; De Anza edition, Szafran, Pike, Foster (John Wiley & Sons: 2008, ISBN 0-471-77762-5) Course Content In this second General Chemistry course, we will begin with a discussion about intermolecular forces in liquids and solids and continue to discuss physical properties of solutions. Following this we will learn about rates of chemical reactions and the parameters that affect the rates of reactions. We will then delve into an extensive discussion on the principles of chemical equilibrium and its relevance to acid-base chemistry and solubility of substances. Finally we will examine the thermodynamics of such reactions and introduce the concepts of free energy and entropy of chemical reactions. Academic Integrity All graded assignments must be completed without any consultation (people, books, internet) unless otherwise permitted by the instructor. Any student that violates this policy will receive a failing grade (F) in the class and reported to appropriate administrative authorities such as the Dean. Attendance Policy You are expected to attend all lecture and laboratory classes. Strong evidences exist that indicate that the success of a student is directly related to her/his class attendance. You will be given an “F” grade for unexcused absences in THREE or more lectures and/or TWO or more lab periods. If you have an unexcused absence during the first two weeks of the quarter, you will be dropped from the class. Excused Absence: If you know in advance that you will need to miss a class, please notify the instructor and provide proof of the excuse. If you have already missed a class, please follow up with the instructor as soon as possible and provide a proof of a valid excuse. Valid excuses are: birth/death in the family, work-related travel, illness/medical emergencies, conference travels, jury duty, accidents, legal issues, or traveling to represent De Anza College at meetings/other events. Other excuses will be considered on a case-by-case basis. Please note that verifiable documented proof of the excuse is essential in order to grant a make-up. Cell Phone Policy Use of cell phones is strictly prohibited during class. There is to be no text messaging, browsing the Internet, or voice conversations. Violation of this policy will bar you from attending office hours and may result in failure in the class. Evaluation The lecture portion of the class is weighted at 75% and the laboratory portion is 25%. There will be six exams, five homeworks, and a final exam in the lecture. Of the six exam, the lowest score will be dropped. There are a total of nine laboratory experiments. You must complete all the lab experiments in order to pass the class. The evaluation for the laboratory part will consist of lab reports, lab exams, attendance, and notebook. Lecture Schedule The following is a tentative schedule for the lecture portion of the class. You are expected to read the assigned chapter for the week prior to coming to class. On the days of the exams, the full lecture period will be used for the exam. Periodically, the instructor may assign certain sections of the book to be read on your own and these will not be covered in the lecture. You will receive appropriate instruction for such readings during the lecture. Some laboratory periods may be used for lectures. Week 1 2 3, 4 5 6, 7 8, 9, 10 11 Chapter 12 13 16 17 18 19 20 Topics Properties of liquids, solids, H-bonding, crystals Properties of Mixtures Kinetics: Rates and mechanisms of chemical reactions Equilibrium: Extent of chemical reactions Acid-base equilibrium Ionic equilibrium in aqueous systems Thermodynamics Grading Lecture: 750 points Exams 6 × 100 = 600 points Final Exam 1 × 150 = 150 points Homework 5 × 20 = 100 points Lab: 250 points Lab Reports 7 × 15 = 105 points Lab exam 1 × 100 = 100 points Pre-lab 7 × 5 = 35 points Labs 1 & 2 10 points Grading Scale In order to obtain the final letter grade for the class, your total lecture score will be added to your lab score and a percentage score will be computed based on the total. This percentage score will be rounded to the nearest whole number and a letter grade will be assigned as per the following table. Grades will not be based on a curve. Please note that regardless of your overall score, if you do not complete all the lab assignments you will receive an F grade in the class. Percentage points 97-100 92-96 88-91 85-87 82-85 78-81 74-77 70-73 66-69 60-65 0-59 Grade A+ A AB+ B BC+ C D+ DF Other Options Pass/No Pass: A grade of “C” or higher is considered “Pass” in the course and lower than “D+” is considered “No Pass” in the course. Audit: If you do not need any credit for this course, you may elect to audit the course. Note: You are not permitted to attend this class if you are not officially registered. Exams The material for the exam will include everything covered until the class period immediately prior to the exam. Exams will be free response or multiple choice and the questions will be similar to the practice problems, homework problems, and problems solved in class. Homework Homework will be assigned from the textbook end-of-chapter exercises and will be graded for completion. Exam Dates Date 5/4 5/17 5/24 6/1 6/12 6/19 6/29 Activity Exam 1 Exam 2 Exam 3 Exam 4 Exam 5 Exam 6 Final Exam Lab Safe lab practices are of utmost importance. Please read the section in your laboratory on safety issues carefully. The following rules are applicable while in the lab: • • • • • • • You may not be in the laboratory unless an instructor is present Notify the instructor immediately in cases of illnesses while in the lab Eating and drinking are strictly prohibited inside the lab Open-toed shoes and shorts are not permitted inside the lab Personal headphones may not be used while in the lab Dispose off waste material and broken glassware as per instructions from your instructor Safety goggles must be worn at all times The lab instructor will provide more detailed information regarding the lab reports as well as the lab exams to you. The following is a schedule of experiments that will be performed this quarter. Prior to start of a particular lab, you must complete the pre-lab exercise and must have read the lab manual completely. Failure to comply may result in not being able to complete the lab experiment at the assigned time. Lab Schedule Lab 1 Lab 2 Lab 3 Lab 4 Lab 5 Lab 6 Lab 7 Lab 8 Lab 9 Title Benzoic acid extraction Freezing point Iodine clock Determination of KC by spectrometry KA of a weak acid pKA of an indicator KSP and common ion effect Buffer and hydrolysis KSP of Ca(OH)2 Check out Lab Report Due Date Dates 4/12 and 4/17 4/19 and 4/24 4/26, 5/1, and 5/3 5/8 and 5/10 5/15 and 5/17 5/22 and 5/24 5/29 and 5/31 6/5, 6/7 and 6/12 6/14 and 6/19 6/21 Report Number Lab 3 Lab 4 Lab 5 Lab 6 Lab 7 Lab 8 Lab 9 Due Date 5/10 5/17 5/22 5/29 6/5 6/12 6/19 Laboratory Protocol (Failure to comply with any of the following will result in loss of credit for that particular experiment) 1. The pre-lab exercise for each experiment must be completed prior to coming to lab. 2. You must comply by all the safety regulations as per the safety document that will be provided to you. 3. You must be present in the lab for the entire duration of the experiment. Pre-lab assignment For all experiments, you must complete a pre-lab prior to coming to the lab. The pre-lab exercise must be completed in your lab notebook. The pre-lab must include: 1. Title of experiment 2. Objective 3. Numbered outline of procedure 4. Blank data tables Notebook You must maintain a detailed notebook for the laboratory, which may be used for: pre-lab exercise, pre-lab lecture notes, and data tables. The notebook must be bound. All entries in the lab notebook must be in pen. You must get the notebook signed by the instructor at the end of each lab period. Lab Report You must complete a report for every lab experiment that is completed in the lab. 1. The lab report must be typed. 2. The following sections must be included in each lab report: Title, name, names of partners, date of experiment, objective, introduction, reference for procedure, data tables, sample calculations, results, discussion, references. 3. A sample lab report is posted on the class website, please follow this sample to write the lab report. 4. Lab reports are due on the dates provided in the table above. For each day the lab report is late you will be deducted one point. You can send the lab report by email in order to secure the date of submission. But only printed copies will be graded. You must submit a printed copy of the lab report in order to receive credit. Lab Exam The lab exam will be based on the principles used for each experiment. Questions will include calculations as well as theoretical basis for the experiments.