Course Description and Direction
Chemistry 120 is the continuation of an entry-level course in quantitative chemistry intended for majors in chemistry and biochemistry. The course provides a background in basic equilibrium calculations, data analysis, and laboratory practice in classical chemical titrimetric analysis and elementary instrumental analysis using electrochemical, spectroscopic and chromatographic measurements. The student in Chem 120 is presumed to taken Chem 119 or to have otherwise gained a background in basic chemical stoichiometry, equilibrium theory and acid base reactions, error propagation, and simple statistics.
Topics introduced in Chem 120 include the quantitative treatments of chemical equilibrium in formation of complexes, in redox reactions, and in solvent extraction, and the theory and practice of chromatographic separations with brief introductions to modern chemical analysis based on electrochemical theory and measurements and to quantitative measurements of the absorption of light by chemical systems.
This course focuses on the development of quantitative measurement and computational skills relevant to the chemical and biochemical sciences and on the strengthening of laboratory and theoretical skills developed in Chem 119.
At the completion of this course, students will be able to:
|Course Location and Times
Lecture: Brown Lab 206 (BrL 206)
Wednesdays and Fridays 3:30-4:45 PM
Discussion: Time and location depends on section
Labs: 106 Drake Hall
Meeting time depends on section
Course Instructor: Prof. S. D. Brown
Office: 239 BrL, 831-6861
Office Hours: 10WR or by appointment
You may attend any office hour(s) you find convenient.
1. G.D. Christian, Analytical Chemistry, 6th Ed., 2004. ISBN-0-471-21472-8. This was the text used in Chem 119 last Fall.
Many authors, including Christian, use Microsoft Excel in the solutions to problems and as a general approach to problem solving.
2. An InterWrite PRS RF Clicker by GTCO Calcomp for responding to required questions posed during lecture.
The clicker is handled as a textbook at the UD bookstore. This clicker will work in all other courses offered at UD that use clickers so you will need purchase only one clicker during your stay at UD. Note that other manufacturers’ clickers will not work as substitutes. Here is the “fact sheet” that the Bookstore provides with the clicker.
Note: Your clicker needs to be set up prior to the lecture in Chem 120, so that you receive proper credit for your answers in lecture. The clicker has a unique serial number which will be associated to your UDID in the clicker database upon first activation, so you cannot share clickers. If you have not already done this, you will need to set up your clicker with your 5- or 9-digit UDID before you attend the first class of Chem 120. The UD has a website dedicated to student set-up and use of clickers at http://www.udel.edu/topics/clickers/students/. It is your responsibility to ensure that the clicker is properly set up.
Other Required Items:
1. A bound 8” x 10” or 9” x 11” laboratory notebook with sewn-in, numbered pages. Please note that loose-leaf and spiral notebooks are not acceptible for use in Chem 120. If you have to purchase a new one, get a notebook with about 50 pages or more. Suitable notebooks are available at the UD bookstore. This notebook can be the one you used in Chem 119, and if you have enough room, it also will be adequate for use in Chem 438, a course which also requires bound notebooks.
2. One pair of chemistry laboratory safety goggles. These must be worn at all times in the laboratory. Suitable goggles can be purchased at the UD bookstore. Biology-style safety glasses won’t be acceptable in Chemistry labs because they lack side protection. Your Chem 119 goggles are suitable for this course and will be suitable for all future Chemistry lab courses at UD, and will probably even work for the Biology labs.
The course will be marked on the results of clicker questions, exams, homework, laboratory results, and the appearance of your laboratory notebook. The grade given will be determined on the basis of the total number of points earned. The average grade in this course has usually been C+.
Attendance and Excused Absences Policy
The syllabus provided is approximate, and the lectures in Chem 120 may deviate from the schedule provided due to weather or to address student needs and preparation. Though attendance is not formally taken at lecture and much of the lecture material may be made available as pdf files for download, you are expected to attend all scheduled lectures. Chances to answer clicker questions can not be provided outside of lecture, and information provided in lecture may not be duplicated on the class web site. You will be responsible for information provided in lecture. Attendance at discussions and laboratories is also expected; students may not write up laboratories that they did not attend, except with the written permission of Prof. Brown.
The class policy on absences follows the University policy, which can be found in the section on academic responsibilities (page 55 and following) in the current University Catalog. Any absences from exams should be announced to the course instructor, if possible, by e-mail in advance of the exam, and the student missing an exam will generally be required to provide an excuse note to be offered a make-up exam. Absences from laboratories will be excused for medical reasons (serious illness requiring a doctor’s care), family emergencies, some University-sanctioned events, and for employer-required absences. Scheduled absences must be made known in writing to the course instructor in advance so that arrangements can be made for adjustment of due dates of class and laboratory assignments. Scheduled absences may require an e-mail from the Dean’s Office or from the employer to support student claims.
There is no makeup of clicker questions included as a part of class lecture.
Minor absences may be excused at the discretion of the course instructor (but not a course teaching assistant!) on a case by case basis, depending on the reason for the absence and what course material is missed.
Clicker Question Policy:
Each week, there will be several clicker questions embedded in the lecture. Your resonse to these questions will be recorded and the percentage or correct answers will determine the clicker score you earn for the class. The score is determined as follows: any percentage of correct answers of 50% or higher earns 100 clicker points. Scores between 0 and 50% earn a corresponding fraction of the 100 points. A percentage of 0% earns 0 clicker points.
While consultation and collaboration between students is encouraged in answering the clicker questions, use of any clicker other than your own to answer Chem 120 clicker questions is considered a violation of academic honesty.
Each week 8 required problems are assigned on WebCT.
Full solutions to these (not just answers!) are due to your TA on Wednesdays, 1 week after they are assigned.
You are encouraged to work together on the homework, but you must turn in your own set of solutions.
Each set is due on Wednesday by 1200 (Noon) to your TA’s mailbox (on the left in Rm BrL) or to your TA’s office. Solution sets will be made available for access/download later that day.
Warning! No homework papers will be accepted after the solutions are made available.
Homework will be graded by your TA as follows:
2 problems from each assigned set will be selected by Prof. Brown “at random,” and your answers to these will be scored as “right,” “partly right,” or “wrong.” For each “right” you receive 4 credits, for each “partly right,” you receive 2 credits. “Wrong” answers receive 0 credits.
Your homework will be assigned a % score according to the number of the total possible credits and the total credits you have earned. The % score from the homework will be averaged with your 2 mid-term % scores.
Any assigned homework due prior to an exam and whose solutions are posted before the exam is considered eligible for inclusion on the examination.
How to Turn in Homework and Labs for Grading:
Homework assignments can be word processed and printed or be done in pen or pencil, on any standard paper. You should turn in homework to your TA, not to the course instructor. You can turn in your homework personally, at office hours or at the TA’s office. Or you can turn your work in to the TA mailbox in Room 105 of Brown Lab. In either case, be SURE that you have your name, your course (that’s CHEM 120), your section (that’s a number from 020 to 021) and your TA’s name on ALL pages, using the upper right hand corner of your homework. Make these legible, please. You can also put “page x of y” on each page, where x and y reflect which page this is (that’s the x) and the total number of pages (that’s the y). Pages do get separated on occasion. Then, securely staple the homework.
If you must turn in homework to your TAs office, please don’t just stuff it under the door! Be sure that it goes on the TAs desk or is placed so that it won’t get removed and discarded, or otherwise overlooked. It is best to give it to your TA personally.
If you turn in homework to your TA’s mailbox in BrL 105 (and be warned – the door is locked at about 1630!), please be careful to get the correct mailbox. The TA mailboxes are on the left as you enter. The name label is above the box, not below it. Several TAs share a mailbox, so make sure that you have labeled and securely stapled your work as described above.
Chem 120 lab reports are to be done on the report forms available on the WebCT class site. These reports should be completed in pen or should be word-processed. You will turn in Chem 120 lab reports, when due, to your TA at the start of your lab in 106 Drake Hall. You will never need to turn in your laboratory notebook. All notebook checks in Chem 120 will occur in lab, so your lab notebook will never leave your possession.
Disclosure of Chem 120 Scores and Grades:
Your TA will return your graded lab reports, homework and mid-term exams. All graded material will be returned at the start of your discussion section. They will generally be returned the week after you submit them. While you can ask the TA or the course instructor about your Chem 120 scores throughout the semester, and can see your scores then, you can get Chem 120 final course grades only from the UD Registrar – neither the instructor nor your TA can release them to you by personal contact, or by phone or e-mail. No scores or course grades from Chem 120 will be released by the course instructor or TA at any time to parents, relatives, friends or others, including other UD departments or programs.
Students requesting special accommodations in Chem 120 must already be registered with UD’s ADA Center or Academic Enrichment Center, as appropriate. Those students should contact the course instructor well in advance of any course activity to arrange for special accommodations that follow the terms of the arrangements set by the Center staff.
University policy concerning possible breaches of academic honesty is found in the current Undergraduate Catalog (p 55 ff) and in the on-line Student Guide to University Policies. You are encouraged to become familiar with The University’s Policy of Academic Honesty found in the UD Student Guide. Policies delineated in the Student Guide apply to this course. Except for responses to assigned class homework and any laboratory work done on laboratory experiments where you are asked to work in pairs or threes, all written and experimental work in the laboratory and in the classroom examinations for Chem 120 is to be done independently. You may not give help to or receive help from others on exams. While collaboration and discussion is encourged for in-class clicker questions, submitting answers to in-class clicker questions for others by use of their clicker is a violation of academic honesty. By turning work into the instructors of this course, you acknowledge being made aware of the academic honesty policy and affirm your awareness of and compliance with the policy.
You will receive instruction in laboratory safety and chemical hygiene, and you are asked to follow the guidelines given during that instruction. We take your safety in laboratory very seriously. You are expected to do your part to ensure a safe laboratory. Please note carefully that any major safety infraction – such as failure to wear safety glasses as required – is grounds for expulsion from the laboratory for the period in which the infraction occurs. Any work not completed as a consequence of an expulsion cannot be made up or repeated.
Seat Claim Policy:
Because of the limited number of spaces in Chem 120 labs, this course follows the Seat Claim policy established by the Provost’s Office and outlined in the UD Catalog: anyone missing the first two classes or laboratory sessions is regarded as relinquishing his/her claim to a seat in this course. Further, those students registered for Chem 120 but not claiming a seat and not completing the drop process may receive a “Z” grade for the course. Attendance will be taken within the first 30 minutes of each laboratory at the beginning of the semester.
Important notices and correction of errors will be sent to the UD e-mail distribution list for the class to provide the fastest dissemination of the information. The registrar will include your campus e-mail account on these class distribution lists, so plan to check it regularly.
Course personnel make every effort to respond promptly to e-mailed questions or concerns from students, but turnaround is not always immediate, so please plan ahead.
Cell Phone Policy:
Placing and especially receiving phone calls or text messages in class is disruptive and discourteous to your fellow students and to the course instructor. You are expected to turn your cell phone off and stow it during lectures, labs and course help sessions.
Accessing a cell phone, pda or ipod during any Chem 120 exam is a violation of academic honesty and may result in the immediate expulsion of the student from the exam.
©2008 University of Delaware
Page created by S. D. Brown
Last updated 12 February 2008