Chem 115 Chemistry Laboratory
Section 03 (Section ID 243973), Spring 2012
Dr. Wu Xu
TR 1:00 – 3:50 pm
MY 123
Syllabus
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Description/Objectives
Requirements
Grading/Evaluation
Laboratory Report
Contact with Instructor
Office Hours
Academic Misconduct
Disability Accommodation
Emergency Evacuation Procedures
Tentative Lecture Schedule
Laboratory Safety and Rules
Description/Objectives
Welcome to Chem 115!
This course is designed to reinforce concepts learned in lecture of Chem 107 and
Chem 108 and provides an introduction into basic laboratory techniques, the
experimental methods, and the presentation of scientific data, as well as direct
experiences with chemical principles and the properties and reactions of substances.
Study hard and have a great semester! I will work hard too!
Laboratory Manual for General Chemistry Chem 115: Department of Chemistry,
University of Louisiana at Lafayette
Requirements
Prerequisites: Chem 107
Grading/Evaluation
™ Students must attend all laboratory sessions and pre-lab lectures. There are no
make-up labs. A score of ZERO will be assigned for each missed lab report. In
the event, a student must miss a lab session for a valid excuse, the student must
contact me at least 24 hours before or no later than 24 hours after the lab.
™ A makeup pre-lab and/or a makeup quiz before or after the schedule lab will be
decided at the discretion of the instructor. Makeup pre-labs and makeup quiz are
generally more challenging.
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™ Please be on time. Each lab period will begin with an important short lecture or a
quiz or demonstration.
™ Each pre-lab is due in the beginning of class. Each lab report is due in the
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beginning of next class. Tuesday lab reports will be due on Thursday and
Thursday lab report will be due on Tuesday of the following week. The penalty for
late assignments including pre-lab and lab report is two points per day.
You need to purchase a notebook for keeping lab notes. The notebook is
different from the written lab report. The purpose of the notebook is to allow
someone to see exactly how the experiments were performed and what results
were obtained.
Twenty-three experiments are scheduled for this course. There will be twenty-two
closed-book quizzes during the course of the semester. Each 15 minute quiz will
cover the experiments, which you performed last time and will be worth 15 points.
One quiz with the lowest score will be dropped.
There will be twenty-three pre-labs and twenty-three lab reports during the
course of the semester. One pre-lab with the lowest score and one lab report
with the lowest score will be dropped.
If you did not miss any of the twenty-three scheduled experiments for this course,
you will obtain 30 bonus points.
Final exam will be comprehensive and a study guide will be given to help you to
prepare the final exam.
Summary of Grading Scheme:
(1) Pre-labs (5 points each):
110 points
(2) Lab Reports (15 points each):
330 points
(3) Quizzes (15 points each):
315 points
(4) Final Exam
200 points
Total: 955 points
™ The grading will follow a standard percentile scale:
90 - 100%
80 – 89%
70 - 79%
60 - 69%
0 - 59%
A
B
C
D
F
Laboratory Reports
™ Each experiment requires a written laboratory report, which contains: Title, Date,
Objective, Results and Conclusions;
™ Title and Date (1 point): a single sentence that states the experiment and write
the date when the experiment was performed;
™ Objective (1 point): one or more sentences that explain the purpose of the
experiment and provide any relevant background information to help readers to
follow the narrative of the report;
™ Results (11 points): statements of fact regarding the data collected and your
observations; appropriate tables or figures could be used;
™ Conclusion (2 points): one or more sentences that summarize the results.
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Contact with Instructor
Dr. Wu Xu
Office No. 138
Biochemistry Lab No. 221 and 236
Montgomery Hall
Telephone: 337-482-5684 (Office)
Email: wxx6941@louisiana.edu
Office Hours
Tuesday, 4:00pm - 5:00pm
Thursday, 4:00pm - 5:00pm
Please contact me if you have any questions. I will be very happy to help each of
you. You are welcome to stop by my office any time.
Academic Misconduct
All acts of dishonesty in any work in this course will constitute academic
misconduct. Exams and quizzes are an exercise in individuality. Any cheating on an
exam or a quiz will result in an automatic score of ZERO point for that exam or quiz and
may result in a grade of 'F' for the course.
Disability Accommodation
For more information about services available to UL Lafayette students with
disabilities, contact Dr. Carol Landry at 482-5252.
Emergency Evacuation Procedures
A map of this floor is posted near the elevator marking the evacuation route and
the Designated Rescue Area. This is an area where emergency service personnel will
go first to look for individuals who need assistance in exiting the building. Students who
may need assistance should identify themselves to the teaching faculty.
Tentative Lab Schedule for Chem 115
Week of
Jan 9
Day
R
Topics
Introduction & Safety
Jan 16
T
R
No lab
Check In and Experiment 1. Inorganic Chemical Reactions
Jan 23
T
R
Experiment 2. Measurement
Experiment 3. Reactions of Copper & Use of Common
Laboratory Techniques
Jan 30
T
R
Experiment 4. Solubility of Potassium Nitrate
Experiment 5. Stoichiometry - Hydrates
Feb 6
T
Experiment 6. Molar Mass of an Active Metal
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R
Experiment 7. Synthesis of Alum
Feb 13
T
R
Experiment 8. Freezing Point Depression
Experiment 9. Volumetric Analysis
Feb 20
T
R
Mardi Gras Holiday
No lab
Feb 27
T
R
Experiment 10. Spectrophotometric Analysis
Experiment 11. Indirect Analysis of Potassium
Mar 5
T
R
Experiment 12. Kinetics I
Experiment 13. Kinetics II
Mar 12
T
R
Experiment 14. Heat, Temperature and Calorimetry
Experiment 15. Thermochemistry
Mar 19
T
R
Experiment 16. pH Measurement and pH Titration Curve
Experiment 17. Buffers
Mar 26
T
R
Experiment 18. Back Titration of Ammonium
Experiment 19. Redox Titration
Apr 2
T
R
Experiment 20. Paper Chromatography
Experiment 21. Synthesis of Aspirin
Apr 9
T
R
Easter Holidays
Easter Holidays
Apr 16
T
R
Experiment 22. Solubility Product Constant
Experiment 23. Molar Mass of a Gas & Check Out
Apr 24
T
Final Exam at 1:00pm – 3:00pm in Room 123
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