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Spring 2007
Office Location: G323 Office Phone: (619) 388-5821 Office Hour: M, W: 8:30-9:30 am. e-mail: ssaidane@sdccd.edu T: 1:00 – 2:00 pm. Mail Box: K202 Th: 9:30-11:00 pm.
Course Description: A laboratory course designed to illustrate the principles presented in Chemistry 100. Acquaints the student with common laboratory equipment and data collection.
Lab Hours Per Week: 3.00
Advisories: Co requisite: CHEM 100. Advisory: ENGL 051 and ENGL 056 and MATH 095, each with a grade of "C" or better, or equivalent, or W5/R5/M40.
Objectives: Upon successful completion of the course the student will be able to: 1. Given a piece of glassware, name and describe its function within the lab. 2. Use an electronic balance. 3. Take measurements for length using a metric ruler, temperature using a thermometer, and volume using a graduated cylinder, recording measurements to the correct numbers of significant figures. 4. Operate a Bunsen burner. 5. Perform separation techniques for mixtures such as filtration, distillation, evaporation, and centrifugation. 6. Titrate a solution to the equivalent point. 7. Appropriate glassware to prepare a solution with a specific concentration. 8. Perform experiments in the lab implementing safety rules. 9. Record observations in an experiment in a neat and logical manner. 10. Handle and dispose of chemicals in the directed manner. 11. Convert a measurement from one metric prefix to another and vice versa. 12. Distinguish between precision and accuracy when taking experimental measurements. 13. Use dimensional analysis to perform conversions between the metric and English units. 14. Measure the density of a substance and perform density calculations. 15. Graph data. 16. Distinguish the parts of the scientific method and explain how these parts are applied in science. 17. Classify matter into elements, compounds and mixtures. 18. Identify whether a substance is undergoing a physical or chemical change. 19. Using a periodic table, determine the numbers of subatomic particles for any element, name all representative elements from their symbols, recognize the location of chemical families, and determine oxidation states of the representative elements. 20. Write and name ionic and covalent compounds. 21. Perform an experiment involving a gas law.
Textbook and Equipment: The required text for the lab component is a packet entitled Chemistry 100L Lab Packet. You will also need to have a pair of Z-87 safety goggles, a lab apron, a lock (all available in the book store) a lab notebook (see below) and a scientific calculator.
Labs: There will be 13 experiments performed on the dates listed on the schedule. Lab reports are due the following week. Each lab will be worth 50 points, and the top 12 scores will be counted towards the final grade. A student who misses more than 2 labs without makeups will fail the course. Missed labs may be made up with permission of instructor (me) only. You will need to fill out a lab make up form and have it signed by myself and the instructor in whose section you complete the lab (see last page of this handout). Late reports will lose 10 points per week. (Makeups are due one week after the experiment is actually done). Reports more than 2 weeks late will not be accepted without first discussing it with me. Lab reports usually consist of data and result sheets, graphs, and end of lab questions. These are found at the end of each lab in the packet, will vary each week and will be discussed for each lab.
Notebooks: A bound lab notebook (like a composition notebook; not a spiral) is required. In this notebook you will write your pre-lab vocabulary definitions, equipment notes and chemical formulas (see handout) and take notes from the board as I lecture before the experiment. All this material must be handwritten in the notebook. You will be allowed to use this notebook during the weekly quizzes and final exam.
Quizzes: At the start of the lab period each week there will be a very short (5 minute) quiz on the vocabulary, equipment and chemical formulas you have entered into your notebook before coming into lab. There also may be a question or two on the previous week’s pre-experiment lecture (also in your notebook). You will be allowed to use your notebook only during the quizzes. No loose papers, sharing notebooks or peeking in the lab packet allowed. Each quiz will be worth 10 points and the lowest or missed quiz will be dropped. No makeup quizzes will be given for any reason! If you are late and miss the quiz you will not be allowed to take it (yes, I’m trying to get you there on time). If you miss lab and do a makeup you cannot take the quiz (unless you do the makeup in my other section on the day they are taking the same quiz).
Exams: There will be one exam on the last day of class (during check-out). It will similar to the quizzes, except it will be multiple choice (bring an answer sheet) and longer. It will cover material from the entire semester; you will be allowed to use your notebook. The exam will be worth 50 points.
Additional Assignments: You will receive 10 points for checking in on day one and 10 points for checking out on the last day. The safety assignment (see p. 7 – 11 of lab packet) is worth 30 points and is due at the start of the second class meeting.
Final Grades:
Points: Letters grades will be determined using the following percentages: Labs: 12 x 50 = 600 A 90% - 100% Quizzes: 12 x 10 = 120 B 80% - 89% Check in / out: 2 x 10 = 20 C 65% - 79% Safety: 1 x 30 = 30 D 55% - 64% Exam: 1 x 50 = 50 F below 55% Total = 820 points
Attendance and Withdrawal Policy: I may drop a student who misses the first lab period without contacting me. All other drops must be initiated by the student. This can be done by filing a drop form with the Admissions Office by the official drop date. If you intend to drop the class, please file the necessary paperwork; do not assume that I will drop you if you do not attend! It is your responsibility to drop the class if you decide to do so. Any student who misses more than 2 labs (without make ups) and does not drop will fail the course. A grade of incomplete will be given only upon verification of extenuating circumstances and only after a formal written request for this grade is made by the student. Students who drop the class must check out of the lab immediately and will also be responsible for any missing equipment. Failure to check out of the lab by May 28, 2005 will result in a minimum fine of $10.00.
Classroom Behavior and Student Code of Conduct: Students are expected to respect and obey standards of student conduct while in class and on the campus. The student Code of Conduct, disciplinary procedure, and student due process (Policy 3100, 3100.1 and 3100.2) can be found in the current college catalog in the section of Academic Information and Regulations (pages 39 - 51), and at the office of the Dean of Student Affairs (H-500). Charges of misconduct and disciplinary sanctions may be imposed upon students who violate these standards of conduct of provisions of college regulations.
Cheating will not be tolerated. If you cheat, you will receive a grade of zero for that report, quiz or exam and may fail the course. Cheating includes, but is not limited to, plagiarizing lab reports, falsifying data, copying on quizzes and exam etc. Students with Disabilities Any student with any disability should discuss this with me during the first two weeks of class so we can make accommodations to enhance the learning process. I will do everything that I can to make the class workable for you.
Outline of Topics: These are some of the topics we will be covering in lab. They will not necessarily be covered in this order. Other topics may be included at the instructor’s discretion.
- Pre-laboratory exercises and laboratory experiments designed to demonstrate the principles and laws of chemistry. - Experiments covering topics on: - metric system - density - physical and chemical properties, - stoichiometry - gas laws - solutions - periodic classification - spectrophotometry - anion analysis - precipitation - solution chemistry - acid-base theory
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