CHM 345 Spring 2008

Quantitative Analysis



Dr. John W. Larson, Professor Office S-466


 
T
Th
T
Th
Week 1
1-15
1,2

Course Format

Q1.4, P1.2,5,6,8
Check in
Balance Exercise
1, 2, 3

Error Analysis 

Volumetric Techniques 

Calibration of Pipet-nb

3,4

Error Analysis 2

Grav. Cl Exp. 2

 

4,5

Gravimetric

Grav. Cl Exp. 2 

Week 3
1-29
5
Ksp Calculations

5.5,7, 12 

Grav. Cl Exp. 2

6

Stoich. 4 Equiv. 

Exp. 5

6

Acidimetry Methods 

. %KHP Exp. 6

7

pH calc. 1 

Stand. of Acid Exp. 7 

Known Soda Ash

Week 5

2-12

7
pH Calc. 2

Soda Ash anal Exp. 8

7
pH Calc. 3

Potentiometric pH 

 

8

Titration Curves

Titration Curve Exp. 10 

8

Finish acid base

unknown acid due

Week 7

2-26

9
Stoichiometry 6 Redox

Potentiometry1

MnO4 Prep., %Fe FAS known

9
Potentiometry 2
9.5, 8, 9 

%Fe MnO4- tit. 
FAS unknown-nb

9
Specific ion electrode
13

Qualitative Paper Chromatography-due on this date

deno gc's
Week 9
3-11
13

demo gcs

GC Standards 
Known and unknown mixture-due
Tuesday 3-18 12:30
13
 GC Standards 
Known and Unknown mixture due Tuesday 3-18
12:30

 

12

Intro to Spectrophotometric
Radiation Regions and IR 

IR Air and Organic Cmp IR unknowns-sr due by friday at 4:00
12

 Beers law 

%CO2 in air
due by Tuesday at 4:00



Week 11
4-1




12

Fe spectrophotometric
-calibration curve
Fe unknowns due friday at 4 pm

%T and c
        12

Fe spectrophotometric

Fe unknowns due friday at 4 pm
Q12.4,6,7,8 P12.7,8,15

Checkout

NMR Intro History, Active, Nuclei, Nuclear Properties.

NMR Tour

P-31, F-19
known Ethyl benzene spectra H, C, Dept  

 
NMR Intro History, Active, Nuclei, Nuclear Properties.

NMR Tour

P-31, F-19
known Ethyl benzene spectra H, C, Dept


Week 13
4-15

NMR Intro -Spectra and Structure
known 1- 2-propanol
unknown 1 -
small alcohols c1-c5 due 11-15 12:30
NMR Intro -Spectra and Structure
known coupled C-13 spectra of 2-propanol.
Unknown 2-aromatic and carbonyl compds due  tuesday 4-22 at 12:30

NMR experimental and decoupling



  NMR  Pulse Experiment
known 3 % C13 in natural Carbon
unknown 3 . Due 4-29 at 12:30


Week 15
4-29

 NMR Spectral Editing  and quantitative nmr
known 4 -
.signal to noise and ns
and
unknown 4 due on T 5-1 12:30




 
Last Class Day


Tuesday may 6 12:45 Final Exam



 

Purpose of the course is to teach the student how to approach a quantitative experiment whether in analytical, physical, environmental, or any other branch of chemistry or science. It will emphasize:

1. The importance of running standards and or benchmark experiments and evaluating their relevance. The importance of analyzing results statistically to get an idea of their accuracy and the problems associated with statistical procedures.

2. The approach one takes to developing the craftsmanship part of the experiment. Special emphasis will be the general approach one takes to instruments and how one treats instruments, tests their accuracy and precision, how one gets the maximum precision out of an instrument, how one operates an instrument using your head not your hands. I want to train you to be able to think critically about an experiment and the possible problems you can run into so you can minimize the errors, the time it takes to run the experiment, and the expense involved in the experiment.

3. The interaction between theory and experiment and how the understanding of the theory is essential to being able to read a new procedure and intelligently run that procedure. It may help one speed up the experimental work or improve its accuracy or improve its sensitivity or adapt it to new circumstances.

4. The general concept of analysis as opposed to and complementary to synthesis: analysis of results to see if they agree or disagree with theory; analysis of data to choose future experiments; analysis of experiment to decide if it will produce the kind of data that will prove or disprove a theory or hypothesis; analysis of the results of synthesis to see if one has obtained the expected results; detailed analysis of an idea to see if it can be kept or if it should be thrown out or refined.

See http://webpages.marshall.edu/~larson/c345/syl345.htm for latest syllabus information and for hyperlinked homework.


Supplies Needed

Text: Quantitative Analysis by Larry Wilson, Latest Ed. Eye protection, Lab Notebook, Paper Towels, Padlock.

Quizzes 25%;
Laboratory Work, and other reports and homework-50%,
Final 25%

grading abbreviations

Homer Hickam's Rules for Mine Forman and My Rules for Teaching at Marshall

Bonus points for fast and accurate results

NMR Spectra Library

Titration curve Programs