University of Wisconsin- Platteville                       Fall 2005

CHEM 2150 Quantitative Analysis  (4 Cr)

 

Lecture:   M and W 11:00 - 11:52 pm   Otts 106

Laboratory: T and Th       A1 8:00 - 10:52 am;  A2 2:00 – 4:52 pm

 

Dr. Charles R. Cornett                      Office hours* M,W   9:00-10:30 am; 1:30-3:00 pm

Department of Chemistry                                              T, Th    11:00 – 11:45 am

and Engineering Physics                                                F          9:00-11:30 am 

OTT 312          342-1658                                             or by appointment between 9 am and 4:45 pm

cornettc@uwplatt.edu                                                  *single hour blocks may be rescheduled due to College and University committees

 

Required Text  

Skoog, West, and Holler, Fundamentals of Analytical Chemistry, 8th edition, Saunders College Publishing, 2003 (CD included because this media now holds many of the laboratory experiments)

 

Reading List

Christian, Analytical Chemistry, 5th edition, Wiley, 1994

Harris, Quantitative Chemical Analysis, 5th edition, Freeman, 1998

Harvey, Modern Analytical Chemistry, 1st edition, McGraw Hill, 2000

Willard, Merritt, Dean, and Settle, Instrumental Methods of Analysis, 7th edition, Wadsworth, 1988

 

Necessary Materials

Scientific Calculator

Laboratory Notebook

Laboratory Goggles

 

Laboratory hard copy (manual) of laboratory experiments is provided for in-lab use only

 

Course Description      

The course covers classical wet and instrumental analytical methods currently employed or utilized as the basis for more extensive methods in analytical chemistry.  Major course foci include gravimetric and titrative analyses, complex equilibria, advanced acid-base chemistry, and an introduction to classical instrumental methods involving separations and spectroscopic methods.   CHEM 215 also includes the study and application of oxidation-reduction, complexometry, as well as ion-exchange.  A thorough experience in the statistical treatment of data is included in the course as is six laboratory hours per week to augmenting in-class learning through laboratory experience.  Prerequisite: A grade of AC@ or better in CHEM 1240 (or instructor=s signature), students not meeting this prerequisite will be required to withdraw from the course.  CHEM 1450 students are encouraged to have a grade of “B” or better given that treatment of equilibrium, electrochemistry, titration, and kinetics is more descriptive than CHEM 1240.         


Course Objective

This course is intended to promote a knowledge of modern analytical and classical techniques associated with chemical analysis .  The course is designed to increase student laboratory experience with classical and modern Awet@ techniques while providing a broad base of introduction to modern instrumentation.  This course is intended to also provide ample opportunities to perform statistical analysis and offer meaningful interpretations of data.  In addition students are expected to develop the ability to work independently in the laboratory.

 

Teaching Methodology

Because the course focuses on quantitative issues, the primary means of teaching are lecture and problem-solving examples.  Students are strongly encouraged to take accurate notes and review these notes on a regular basis.  A comparison of notes with classmates is suggested to ensure your notes are complete.  Students are expected to remain current with reading assignments as well as suggested problems.  Quizzes will be administered announced and un-announced and problem-solving assignments will be an integral part of a successful study.  The ultimate responsibility of learning lies with the student, and all students are highly encouraged to make use of post office hours for questions, clarification, or further discussion.

 

Grading

Examinations (4)                       100 pts x 4       400 pts             A >  90 % or 1260/1400 pts

Best 10 quizzes/assignments  10 pts x 10           100 pts             B >  80 %

5 graded unknowns                  50 pts x 5         250 pts             C >  70 %

1 full lab report                         120 pts             120 pts             D >  60 %

9 partial lab reports*                 20 pts x 10       180 pts

Laboratory Final                                               100 pts

Laboratory evaluation   (includes notebook)        50 pts

Comprehensive Final Examination                     200 pts            

          1400 pts            

 

Examinations

Lecture notes, assigned reading, and discussion topics are the primary resources for study.  Questions may include, but are not limited to, short-answer, multiple-choice, quantitative problem-solving, and short-essay formats.  Conceptual integration should be anticipated.  Exams will be administered during the laboratory period.  The instructor reserves the right to curve the final class averages.  Individual exams will not be covered.  Non-linear methods may be applied where statistically appropriate.

 

10 quizzes

There are at least 10 assigned quizzes and assignments, one per week, more-or-less, throughout the semester.  These quizzes are multiple choice and short answer questions focusing on the major points of the week.  While quiz questions provide an opportunity to assess student progress, these general questions do not exclusively represent the level or types of questions in the one hour examinations.  These  quizzes are intended to provide a basic assessment of how well each

Quant 2150  Fall ’06 p.3

student is keeping current with the major concepts of the course.  In the event that more than 10 quizzes and assignments are administered, the >highest-marked= 10 exercises will be retained.  Unexcused absences will not be dropped; therefore quiz grades of >zero= for these absences will be retained.

 

Graded Unknowns (5)

            A series of Thorn-Smith unknowns will be issued with five experiments.  Each unknown is graded 50% for accuracy and 50% for precision unless otherwise noted.  Additional aliquot of an unknown may be “purchased” for 10 pts.  Any “second trial” will be docked 10 pts.

           

Participation

In-class participation is an essential part of a successful study.  This includes content-based discussion with fellow students outside of the classroom.  Plan on spending two hours outside of the classroom for each hour in-class for best results.  Another aspect of participation is seeking additional assistance if necessary.  Please refer to posted office hours and feel free to schedule an appointment if you are unable to see me during these hours.  In addition, feel free to email questions.  A good measure of daily progress is available by working the assigned homework problems and assignments.  Trouble with completing these problems DOES indicate the need for extra help.  PLEASE see me during my posted hours or schedule an appointment.  While an occasional appointment or illness may call me away, I reserve these hours solely for your questions and discussion.   There should be no hesitation in using these hours or calling to schedule an appointment.

 

Assessment Philosophy

A         An excellent understanding of the material and an outstanding ability to quantitatively employ the concepts in solving related problems

B         An above average understanding of the material and the ability needed to

quantitatively employ the concepts in further studies or applications

C         An average understanding of the material and its quantitative applicability

 

Attendance Policy and General Expectations

* Students are expected to attend all sessions.  With consideration for others, do not attend class if you are ill.

Please inform the instructor if you are to be absent, otherwise all absences will be treated as

Aunexcused@ absences.  It is the responsibility of the student to acquire the notes from the

missed classes.  The instructor reserves the right to refuse all assignments late as a result of

an unexcused absence.  Instructor notification of absence does not necessarily constitute an

excused absence.

* (Spring semester) Commuting students, please check your e-mail prior to class in inclement weather and use appropriate judgment before traveling should the University remain open.

* Habitual tardiness will not be tolerated.  Occasional delays are a fact of life; however, when arriving late, please minimize disruption when entering the classroom.

* If co-curricular activities necessitate an absence from class, please inform the instructor as soon as these events are scheduled or sanctioned sport schedules available so that these absences may be excused.

* There are NO make-up examinations.  In the event of an excused absence, the corresponding section of the final examination will substitute for the missed grade.

* If you have a specific physical, psychological, or learning disability and require accommodations; please let me know as early in the semester as possible so that your learning needs may be appropriately met.

*  Cell phones are to be turned off prior to class.

*  Come to class prepared; bring along your scientific calculator as well as the textbook.

 

Academic Integrity

Academic dishonesty will not be tolerated and will be dealt with in the manner outlined in the current University of Wisconsin-Platteville Student Handbook.    Academic dishonesty includes the party(ies) knowingly supplying restricted work to another individual.  Academic dishonesty includes but is not limited to dry-labbing, altering, or misrepresenting data.  Plagiarism includes “cutting and pasting” from electronic resources, copying a lab partner’s work (outside of the raw data and raw notes), or failing to quote another’s original work.  Plagiarism also includes failure to cite another author’s work if that work is the original basis of your own contributions. Academic dishonesty is viewed as a very serious breach of student conduct and will be dealt with to the fullest extent provided under University guidelines. 

 

In addition to issues of academic honesty, ethics in analytical chemistry will be discussed.  This course will also provide case-study examples related to ethical issues related to the discipline.

 

Laboratory Notebooks

The laboratory notebook must be properly kept.  It is the foundation of analytical chemistry and the traceability required for quality work.  Quality work in turn, is required to pass this course. 

 

1. Laboratory notebooks are to BOUND notebooks.  Spiral notebooks are unacceptable, no exceptions.

 

2. Laboratory notebooks should leave the first page for a table of contents and work in a chronological fashion thereafter; pages are to NEVER be left blank so as to keep each experiment “together”. 

 

3. Each page is to be signed and dated by the analyst at the completion of that page.  If work ceases in the middle of a page, the page is signed at that point and dated.  At the end of each work period, a witness must sign the page on which the last entry is recorded. 

 

4. If  significant blank space remains on a page and further data can not be recorded on that page, a single line is struck through the blank space.

5. All entries are made in INK; errors are “struck through” with a single line.  There is virtually no use for an eraser in an analytical lab.

 

6. Failure to sign a page is an act of omission; signing pages hurriedly when the instructor asks for a notebook check is an act of commission.  This deception will be treated as academic dishonesty and forwarded for discipline.

 

7. “Grading” the notebook applies to each experiment as well as the laboratory evaluation.  Failure to follow protocols will result in a loss of points under one or both categories.

 

Tentative Schedule of Lecture Topics

Lecture

Laboratory

Topic

Chapter(s)

 

 

9/7

 

 

 

Introduction/Analytical Methodology

 

1, 34, 35

9/12 -9/21

 

Statistical Treatment of Data

2 – 8

9/26

 

*Examination 1a – Otts 106 during lecture period

(1-8, 12,13, 34,35)

9/28

 

*Examination 1b – Otts 106 during lecture period

 

10/3-10/5

 

Gravimetric and Titrametric Analysis    

12-13

10/10 B 10/19

 

Aqueous Solutions and Ionic Equilibria

9 – 11

10/20 (Thurs)

 

*Examination 2-Otts 301

(9-13)

10/24-10/31

 
Neutralization Titrations
13

 

11/1 is the

 last day to drop the course

 

11/2-11/7

 

Titration Curves/Complex Acid-Base

15 – 17

 

 

 

11/9- 11/21

 
Electrochemistry

18 – 23

11/21

 

*Examination 3-Otts 106---evening exam

 

11/23-11/30

 

Chromatography

30 – 32

12/5-12/12

 

Spectroscopy

24 – 28

12/12

 

*Examination 4-Otts 106---evening exam

(24-32, no 29)

12/14

 

Kinetic and Nuclear Methods of Analysis

29

 

 

 

 
 
12/21

1:00 PM

 

ACS COMPREHENSIVE FINAL EXAM-Otts 106 

 

 

 

Tentative Schedule of Laboratories

 

 

Laboratory Topic

Chapter(s)

 

9/6

   Check-in / Calibration

SWH 37/handout

9/8

   Calibration/ Suntan Lotion

SWH 37/handout

9/13 thru 9/29

   *Gravimetric Analysis of an unknown Cl-

SWH 37/handout

10/4 and 10/6

   *Determination of Magnesium by Direct Titration

SWH 37/handout

10/11thru 10/20

  *Determination of Potassium Hydrogen Phthalate

SWH 37/handout

10/20 (Thurs)

Lecture Examination 2 – Otts 301

 

10/25 thru 11/3

*Determination of Ascorbic Acid in Supplements Via Titration and HPLC

SWH 37/handout

11/8 thru 11/15

** Water Quality by Atomic Absorption Spectroscopy

Handout

11/17and 11/22

Determination of Fluoride in Tooth Paste by ISE

SWH 37/handout

11/29 and 12/1

#Determination of Nitrates in Drinking Water

Handout

12/6 and 12/13

#Confirmatory Tests of Illicit Compounds

by GC-MS

Handout

 

#GC-MS Analysis of Arson Residues

Handout

12/15

Laboratory Final (first two hours); check out follows afterwards

 

 

 

 

 

* Graded unknown

 

** Full lab-report, graded secondary reference material (SRM)

 

#Other forensic applications may be added or substituted

 

Report format and due dates:

 

9/15 -- Calibration (memo)

9/15 -- Sun tan lotion (abstract)

9/22 -- Chloride (introduction)….note: this is due before the completion of the lab itself!

10/13 -- Mg titration (materials and methods)

10/27 -- KHP titration (results and discussion)

11/10 -- Vitamin C comparison (conclusion and references)

 

11/22 --  Water quality lab (Full lab report)…note: begin this effort ASAP, intro should be a “pre-lab” exercise as well as roughing in of materials and methods

 

11/29 -- F- in toothpaste (Business letter)

12/8 -- Nitrates (letter to editor, general public)

Illicit compounds/arson residues (oral presentation of findings, date TBD)