F A T IH U N I V E R S I T Y
Faculty of Arts and Sciences
Department of Chemistry
CHEM 106 (SPRING 2006)
GENERAL CHEMISTRY LABORATORY - I I
Instructor: Dr. Burak ESAT,
Oda No: A-340,
E-mail: besat@fatih.edu.tr
Web Page: http://www.fatih.edu.tr/~besat
Tel: 2097
Lab Assistants:
Res. Asst. Nermin KASAPOĞLU
Res. Asst. Mehmet ŞENEL
Res. Asst. Aslıhan SEZGİN
Res. Asst. Şeyda T. GÜNDAY
Res. Asst. Nürüfe KEMİKLİ
Res. Asst. Bahar BİRSÖZ
Main Textbook (MT): “General Chemistry Laboratory Manual”, Department of
Chemistry, November-2004.
Lab Notebook: All students must have a lab notebook. A4-sized 100-page notebooks should
be used for the laboratory.
Lab sessions will be held in Room A-117.
LIST OF EXPERIMENTS
Assignment 13 Preparation of O2 and CO2 Gases in the Laboratory
Assignment 15 Atomic Spectra and Flame Test
Assignment 14 Preparation and Properties of Some Basic Oxides
Assignment 17 Fractional Crystallization of Salts: Preparation of Potassium Dichromate
Assignment 18 Enthalpy of Formation
Assignment 23 Standardization and Titration
Assignment 24 Equivalent Weight of an Unknown Ammonium Salt
Assignment 26 The Preparation of Potassium Trioxalatoaluminate and Potassium
Trioxalatochromate Complexes
Assignment 27 Conduction of Charge in Electrochemical Cells
Assignment 28 Electrochemical Cells: Dependence of Ecell on Concentration
1
EVALUATION OF THE COURSE
GRADING
QUIZ
PERFORMANCE
LAB REPORTS
MIDTERM EXAM
FINAL EXAM
%10
%10
%30
%20
%30
OUIZ
Written quizzes are given in the beginning of each lab session and no make-ups are provided
for the late-comers. You will have to obtain a passing grade from these quizzes (at least 3 out
of 10) in order to be allowed to do that experiment. Otherwise, you will be asked to leave the
lab and return on another day for a make-up. Keep in mind that the maximum allowable
number for make-ups is two per semester including make-ups for any missed experiments for
a valid reason. Therefore, you must come to the lab prepared. (Please read and understand the
objectives, theory, experimental set-up and apparati as well as the experimental procedure).
PERFORMANCE
Assistants evaluate the lab performances of the students. They discuss the experiments with
the students, asking questions during and after the experiment. All the discussions are made in
English.
LAB REPORTS
Reports are submitted to the assistants within the time frame specified in the “Rules &
Regulations” section below. Every student prepares his or her own report. A report contains
the following subsections:
Title
Purpose
Evaluation ( includes the data, calculations and the graphical presentations )
Questions ( if available )
Discussion
It includes a summary of what has been done. Comparison of the theoretical and
experimental results are made and the sources of errors are mentioned. Comments about the
findings and the method should also be included.
MIDTERM:
A midterm will be given which will constitute 20% of your grade.
2
FINAL EXAM:
A cumulative final exam will be given which will constitute 30% of your grade. Students
must take the final exam in order to pass the lab course.
ATTENDANCE
Students must attend every experiment. At most two make-up experiments can be provided in
condition that reasonable excuses are reported. Students who do not complete the experiments
are not allowed to take the final exam and thus fail the course.
RULES & POLICIES:
1. Students can only work in the lab section which they have registered.
2. Students must come to the lab on time. Anyone who comes to the lab 15 munites late will
not be allowed to work in the lab.
3. All students must come to the lab with their lab coats, lab notebooks and lab manuals. No
one will be allowed to work in the lab without a lab coat and a lab manual.
4. Students must attend every experiment. Make-ups will be provided to only those with
valid and reasonable excuses. A maximum of only two make-ups per semester will be
allowed. Those who miss the lab without a valid excuse willl get zero for that experiment.
Students who miss more than two labs will fail in the lab course for the semester. Students
who fail in the lab course will also fail in the General Chemistry Course (Chem 105).
5. The name, date, purpose and equipment parts of the assignment as well as your
experimental data should be written to the notebooks during the laboratory session. You
must present your data to your lab assistant and obtain his/her signature on the pages
containing your data at the end of each lab session. Make sure that your data is legible and
well-organized. Lab reports will be written into the lab notebooks and submitted to your
lab assistant by each student within two work-days after the lab session in which the
experiment is completed (i.e. on Mondays by the Thursday section students and on
Tuesdays by the Friday section students). A lab report handed in late will lose 20 points
within the first 24 hours after this dead-line and will get zero past this period. The lab
report must include a discussion of your results and observations as well as the answers to
the questions in your lab book related to that experiment. Any objection to your grade for
the experiment has to be submitted to your lab assistant no later than one week after you
have handed in your lab reports (You will be informed of your experiment grade within a
week after the experiment is completed). Otherwise you will forfeit your right for
objection.
6. A quiz will be given before each experiment. You will have to obtain a passing grade
from these quizzes (at least 3 out of 10) in order to be allowed to do that experiment.
Otherwise you will be asked to leave the lab and return on another day for a make-up.
Keep in mind that the maximum allowable number for make-ups is two per semester
3
including make-ups for any missed experiments for a valid reason. Therefore, you must
come to the lab prepared. (Please read and understand the objectives, theory, experimental
set-up and apparati as well as the experimental procedure).
7. It is forbidden for students to be involved in activities other than those related to that day’s
experiment. (No eating, drinking, smoking, doing assignments related to other courses
etc.). No playback devices, cell phones and personal computers are allowed in the lab.
8. For safety and health reasons, students must strictly follow lab rules and regulations and
should work carefully in the lab. Playing with chemicals are dangerous and forbidden.
9. Students will be asked to compensate for the items they have broken in the lab. Otherwise
the student will not be allowed to take any exams.
10. Students are required to use only the items in their own experiment kit. Please inform your
lab assistant about any missing and broken item so that it can be replaced. Borrowing
from other experiment kits is forbidden. Students should clean the items they have used
during the experiment and should return a clean experiment kit at the end of each lab
session.
11. Students cannot leave the lab without permission.
12. It is your responsibility to know the location of, and how to use, the emergency
equipment.
13. No unauthorized experiments are to be performed in the laboratory.
14. A laboratory apron or nonflammable coat should always be worn.
15. Do not take the reagent bottles away from their places.
16. Take the amount of reagent indicated.
17. Do not place a bottle stopper down on any surface.
18. Do not insert your pipette or dropper into the reagent bottles.
19. Never return unused chemicals to stock bottles.
20. Always label your solution-containers.
21. Never pick up hot objects with your hands.
22. Never add water to concentrated acid.
23. Smoking, eating or drinking are absolutely forbidden in the laboratory.
24. Never taste any laboratory chemical.
25. Never inhale gaseous fumes.
4
26. Never use flammable liquids near a flame. In case of fire, notify the instructor
immediately.
27. Eye protection is absolutely necessary .
28. Never throw matches, litmus paper, or any solid waste into the sink.
29. Put any broken glass in container labeled "broken glassware".
30. Chemicals should be assumed to be toxic unless known to be otherwise.
31. Report any spill or accident immediately to your instructor.
32. Be familiar with the following terms and their effects:
Flammable
They are easily ignited (burn).
Irritants
They irritate the eyes, lungs, and skin.
Toxic
They are poisonous in either the short or long term.
Carcinogenic
They cause cancer.
Teratogenic
They cause defects in the unborn fetus.
Mutagenic
They cause genetic mutations.
Explosive
They explode, usually on being mixed with air.
Corrosive
They burn the eyes, lungs, and skin.
5