SYLLABUS

Chemistry 241

Fall 2009

Instructor: Dr. Brotherton Office: CNSB 210

E-mail: hbrotherton@ulm.edu Phone: 1826

Office hours: MWF (10:00-10:50; 1:00-1:50), TR (9:00-11:00)

Laboratory: CNSB 144, T(2:00 - 2:50), CNSB 145, R(2:00 - 2:50)

CNSB 143, TT(3:00 - 5:00)

Prerequisite: CHEM 110 (AC@ or better), credit or registration in CHEM 240

Textbook: AQuantitative Analysis Laboratory Manual@, ULM publication.

Course Objective: This course will introduce students to quantitative laboratory techniques. Students will be introduced to classical quantitative analytical laboratory titrations including neutralization, complexation, redox, and potentiometryc analyses as well as gravimetric and spectrophotometric techniques. Accuracy and precision of measurements will be stressed.

Grading: All labs are graded on a basis of 0‑30 points per unknown (270 possible points for nine unknowns). The due dates for unknowns will be assigned by the lab instructor. Your lab notebook (30 points) will be collected on the date of your last test. There will be 4 tests (50 points each), and a final test (100 points).

Labs: 300 pts.

Tests: 200 pts.

Final: 100 pts.

An individual with an average of 89.5% or greater will receive an A in this course, 79.5 to 89.4% a B, 69.5 to 79.4% a C, 58.5 to 69.4% a D, and less than 58.4% an F.

Attendance in the laboratory is required.

Absences: If the absence is unexcused, the grade on the laboratory or test is a zero. If the absence is excused, you will be required to complete any and all missed laboratory work during the regularly scheduled laboratory periods. No additional laboratory make-up time will be scheduled. Lab tests missed during excused absences will be given at the end of the semester before finals.

Cell phone policy:Students carrying cell phones into a classroom or laboratory must turn off and store (e.g., in a backpack, purse, phone holster, or other similar item) their phones prior to entering the room.Cell phones are not allowed on desk or table tops.If there is an extenuating circumstance that requires the cell phone to be on during a class, the student must obtain permission from the instructor prior to the beginning of class and must operate the phone in a silent (vibrate only) mode. who violate this cell phone use policy may be asked to leave the class.

LABORATORY SCHEDULE

August 25 Check‑in, assign balances, check use of balances and equipment.

August 27 Begin Exp 2: Prepare solutions, get unknowns for first experiment.

September 1 Exp. 2&4: Acid‑base titrimetry of a weak acid

September 10 Exp. 4 Potentiometric analysis of a weak acid

Test 1 following experiments 2 & 4

September 17 Exp. X Percentage of Acetic Acid in Vinegar

September 24 Exp. 5 Precipitation titrimetry of a sulfate

Test 2 following experiments X & 5

October 1 Exp. 8 Redox titrimetry of oxalate by permanganate

October 13 Exp. 11 Gravimetric complexation of Ni

Test 3 following experiments 8 & 11

October 27 Exp. 12 Gravimetric electrodeposition of Cu

October 27 Exp. 13 Potentiometric analysis of Cl^-

Test 4 following experiments 11, & 12

November 12 Exp. 14 Colorimetric determination of Fe

November 26 Final Quiz (comprehensive), Check‑out