A list of homework problems from class
Instructor: Dr. Charles H. Mahler, Phone 321-4351 or
322-8840 (h), mahler@lycoming.edu
CLASS meets M, W, F from 11:30 AM to 12:20 PM in HBC Room
215.
Prerequisites: CHEM 111, MATH 129 and one year of physics; or consent of
instructor.
Materials for Course: "Physical Chemistry" 5th Ed. Peter Atkins; Calculator with
logarithmic and exponential functions (no passing or sharing allowed in exams); Bound
Laboratory Notebook with quadrille pages (for lab use only); Safety Glasses or Goggles; Closed
Shoes (Lab Coat or Apron recommended); Experimental Procedures will be distributed in class.
A lab deposit of $5 will be collected in the first lab - the cost of lab handouts will be taken from
this.
Evaluation and Grading: Grades will be based on the following weighting scheme:
3 Exams (35%), a Final Exam (20%), Lab (30%), and Homework and Quizzes (15%). 3 extra
credit points (on a 1000 point scale) will be given for each Chemistry Colloquium attended.
Alternative extra credit will be available for those whose schedules conflict with colloquium
(must see me to arrange this before November 7, 1997).
ALL EXAMINATIONS ARE COMPREHENSIVE, ESPECIALLY THE
FINAL.
The following scale will be applied to determine the final letter grade: A >
90% > B > 80% > C > 70% > D > 60% >
F . Plus and minus grades are included in these ranges and will be determined at the end
of the semester. Adjustments to this scale are possible, but unlikely.
Tests:
Content: Physical Chemistry provides the theoretical basis for explaining and
interpreting chemical systems by focusing on the energy and time involved as they change. In
the course we will plan to cover topics in Chapters 1-10 of the text. We will study and attempt
to understand many of the basic principles and phenomena of chemical systems in equilibrium,
including Gases and their properties, Chemical Thermodynamics, Phase Relationships and
Diagrams, Chemical Equilibrium, and Electrochemistry. Chemistry 331, Physical Chemistry
II, will continue where this course ends.
If you have questions or comments about anything in the course, please come see me. I
am ready and willing to meet with you and discuss your concerns, answer questions, explain
concepts, solve problems, etc. I would rather help you to understand something before a quiz
or test, than to find out you don't understand it while grading your work.
Attendance and Absences: Attendance is required. Bring your textbook and
calculator to lecture. Lecture absences (after three) will be penalized 3 points per day (on a
1000 point scale). Colloquium attendance or other extra credit points will be applied towards
absences before counting as extra credit. Only absences notified ahead of time may be
excused. Notification is expected as soon as possible for planned (athletic events, class
trips) or emergency (illness) absences; call me (321-4351, w or 322-8840, h) or the Department
Secretary (321-4180, answering machine). The cause of absences must be verified by the Dean
or substantiated (note from coach or parent, doctor's excuse).
Exam Absences: No make-up exams will be given. The (cumulative)
final exam grade (%) will be substituted for one excused absence exam grade (%).
Barring exceptional circumstances, all subsequent missed exams will receive a grade
of zero.
Lab Absences: Because students work in groups in lab, absences hurt everyone and
should be avoided. Make up labs will vary (and may not be possible), depending on the
circumstances of that week's experiment. In some cases, students may be allowed to work
outside scheduled lab hours by first obtaining permission from a chemistry professor (who must
be in the building while they work and be notified when they leave), and then having a "buddy"
present.
Homework: There will be homework problems assigned most days during the
semester. These are due at the start of the next lecture (or as soon as you enter lecture, if late)
and will be graded. Because we then go over the problem and its solution, no homework
problems will be accepted after the end of the lecture in which they are due. The lowest two
homework grades will be dropped. If you can not be in class or lab, have someone else
take notes and hand in any assignments for you. Keys for assigned problems and exams
will be reviewed in class and/or posted.
General Comments: Students are responsible for knowing material in the assigned
reading, problems, labs, and lectures. Working problems, studying and understanding the
material are keys to doing well. It is assumed that the students are familiar with the background
material. While I am glad to help you in reviewing these topics, it is your
responsibility to make up any weaknesses or deficiencies you might have. Much of the course
material involves a high degree of conceptual understanding (not simple memorization), so
adequate preparation and study are essential. It is not sufficient to learn the
material from the lecture alone - you should read and think about the topics covered
before attending lecture. There will be periodic review sessions. If you have tried
and still can't get a problem or concept, see me for help. We will cover ten detailed and difficult
chapters this semester, so our pace must be geared toward those who are prepared to learn.
In homework and exams be neat, box answers, show your work and units (partial credit will be
given). On an exam, look at all problems, then do the easiest ones first. Don't spend too much
time on any one problem. Preparation and practice (i.e. doing problems and studying) are the
best ways to do well on tests. Start work on lab reports well before they are due - these can not
be done well at the last minute. Many Physical Chemistry Lab Reports involve as much time
(or more) in writing and calculation as the original experimental procedure did.
Teaching Style: When I teach, I try to convey my current understanding of a topic
while recalling how I learned it. I illustrate a topic by explaining it from different points of
view, frequently using humor and analogy. Analogies allow us to apply our understanding of
a topic in a different context to chemistry. Still, I encourage you to use whatever methods work
best for you own comprehension. Because I feel it is better for you to work out an answer
yourself, if you ask me a question, you'll generally find I respond with a series of my own
questions for you. I do this to help guide your thoughts from what you know to the answer
sought, which should teach you more than if I gave you the answer directly.
Academic Honesty: On all exams and lab reports, copying someone else's work or
allowing another to copy your work and submit it as their own is academic dishonesty. It will
not be tolerated and can lead to penalties such as failing the assignment or even
dismissal from the college. Because all work submitted for a grade should be your own, I can
not work graded problems for you if you come to see me. However, we can work
similar problems, or I can help you work the problem yourself by asking "leading questions".
In Physical Chemistry, it is often assumed that constants or values needed to solve problems will
be looked up in various reference works. Always include citations for all sources consulted in
labs or homework to avoid plagiarism. Unless otherwise stated, all work submitted for a grade
should be your own work (although you can study with others to understand the concepts). For
further information on the college policy on academic dishonesty, see the Pathfinder
or Student Handbook.
Posting: Scores will be posted after exams using a secret, four character code
chosen by each student. If you prefer not to have your scores posted, let me know (in writing)
by 8/29/1997.
World Wide Web: This syllabus, homework assignments and other class items can
be found at http://www.lycoming.edu/dept/chem/fall1997/330syl.htm.
Administrative procedures (withdrawals, etc.) will follow the published guidelines
and rules of the college and department.
Safety and Labs: Unsafe behavior in Lab will not be tolerated. Repeated unsafe
behavior will result in a zero for that lab. In lab: 1) Eyewear must be worn at all
times; 2) No eating, drinking, or smoking; 3) No horseplay; 4) No unauthorized, 'independent'
experiments; 5) Wear enclosed shoes only; 6) Legs must be covered; 7) Additional safety rules
are in the Lab, which you are expected to read. Come to lab each week well prepared. Report
all accidents and injuries immediately. Know the location of all exits and emergency equipment
(fire extinguishers and blankets, eye wash, first aid kit, etc.) When in doubt, ask.
Wearing contact lenses in lab is highly discouraged. If you do wear them in lab,
please let me know (no penalty - it is good to know in case of an accident). Wear older clothes
- they could be stained or ruined. Above all, use common sense and your chemical intuition -
THINK.As an experienced student chemist, you will be working in many situations which
demand your utmost care and attention to protect the safety and health of yourself, your fellow
students, and the environment. Preparation and careful, patient work are needed to obtain the
results required in each experiment.
Notebook: Your Lab Notebook should be neat, well organized, up-to-date and
complete, with a Table of Contents. The Table of Contents should be updated with each
experiment. Leave room to record your data, the uncertainties in measurements, and any
observations about the experiment. Make a copy of each notebook page and hand these in with
the report. Each page should be clearly labeled with your name, the date and the name of the
experiment (abbreviations are OK). Notebooks will be graded once during the semester. When
working in groups, record the names of your group members and also note who performed what
tasks, i.e. temperature data (from John), absorbance values (from Susie).
Lab Reports: Lab reports consist of: Title, Objective, Approach, an
Experimental Section (with data, observations, etc.), Sample Calculations, Graphs (or other
material needed), Answers to Questions, Error Analyses, and a Conclusion. The first three
items should be in your notebook before you start any experiment. When working in groups,
each member will submit their own lab report. A group may submit only one copy of
supplementary material (i.e. spectra, copy of an article, etc.). One lab report may be formally
written up - additional instructions and safety information will be given in the prelab
lectures.
Graphs should be on proper paper, fill the page, show data points in ink, have linear (or proper)
scales with units and labels on axes. Graphs done on computers should have a printout of the
data attached. Data from unknowns and values determined from the graph should be clearly
marked. If a line is fitted, the equation of the line should be given (and determination of points
from this equation shown in a sample calculation).Reports are generally due one week after
completion of the lab work - a deadline will be given for each experiment. Lab reports are
considered late at the end of the lab they are due in (but may be handed in early). Late work
will be penalized 5% per school day.
Tentative Laboratory Schedule
Office Hours: Heim 202, M 1:00-1:50 PM, W F 10:00-10:50 AM,
by appointment, or drop by
LAB meets T from 7:45 to 11:35 AM in HBC Room 203.
Hour Exam 1 Tuesday, September 23, 1997 (in lab)
Hour Exam 2 Tuesday, October 21, 1997 (in lab)
Hour Exam 3 Tuesday, November 18, 1997 (in lab)
Final Exam Week of Dec. 8 - 12, 1997, To Be Announced
8/26 CHECK IN, THE LAB NOTEBOOK, ERROR ANALYSIS
9/2 BOMB CALORIMETRY SOLUTION CALORIMETRY
9/9 BOMB CALORIMETRY SOLUTION CALORIMETRY
9/16 SOLUTION CALORIMETRY BOMB CALORIMETRY
9/23 EXAM ONE
9/30 SOLUTION CALORIMETRY BOMB CALORIMETRY
10/7 Cp/Cv RATIOS OF GASES SURFACE TENSION
10/14 Cp/Cv RATIOS OF GASES SURFACE TENSION
10/21 EXAM TWO
10/28 SURFACE TENSION Cp/Cv RATIOS OF GASES
11/4 SURFACE TENSION Cp/Cv RATIOS OF GASES
11/11 ELECTROCHEMISTRY
11/18 EXAM THREE
11/25 ELECTROCHEMISTRY
12/2 REVIEW, CHECKOUT OF LAB
Last updated August 26, 1997.
The URL for this page is
http://lyco2.lycoming.edu/dept/chem/fall1997/330syl.htm