CHEM 243

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COURSE SYLLABUS

A: LECTURES

INSTRUCTOR: Professor Teresa J. Bandosz

office : J-1316; Telephone: (212) 650-6017; E-mail: tbandosz@scisun.sci.ccny.cuny.edu

Blackboard site: http://online.cuny.edyu:8001

CONSULTING HOURS: Tuesday, and Thursday: 11-12 or by appointment.

TEXT BOOK: Analytical Chemistry: D.A.Skoog; D. M. West; F. J. Holler, S.R. Crouch, 7th edition, 1999.

PREREQUISITES: General Chemistry

GENERAL OBJECTIVE: This course intends to introduce the bases of analytical chemistry for chemistry and biochemistry majors. The emphasis is put either on understanding the theoretical aspects of quantitative analysis or problem solving skills.

LEARNING GOALS:

Students should:

Know the physical bases for analytical methods discussed during the course and understand them

Be aware of the sources of errors and have knowledge how to avoid them

Know how to calculate the amount of analyte in the specific application of each method

Know how to obtain calibration curve and how to use it for an analytical purpose

Know the criteria which are used for choosing the methods for a particular analysis.

CONCEPTUAL THINKING OBJECTIVES:

Reading: cause-effect logic, hypothesis testing, summarizing logic
Writing: cause-effect links, objective designing, experiment planning
Data analysis: relevant data sources, data treatment, qualitative and quantitative evaluation, data consistency, error analysis
Models: cause-effect, correlation, trends

LEARNING ACTIVITIES:

Text reading

Class-time (lecture)

Hand on experience (laboratory)

Workshop exercise

Group discussion

Computer-aid instruction

Problem solving (individual)

Student-instructor consulting

HOME ASSIGNMENT: The course requires extensive reading and understanding of each chapter covered during the lecture. Students are encouraged to solve the problems and find answers to all theoretical questions after each chapter.

QUIZZES: Before each lecture starts the students will be asked to find an answer to one question or solve the problem (5 minute quiz) dealing with the material discussed during the previous lecture. The grading from quizzes will consist of 5% of the total grade.

ATTENDANCE: Students are required to attend all lectures and laboratories. After 3 absences the instructor will ask the Registrar to withdraw the student form the course with WU.

GRADING:

No INCOMPLETE Grade

Final - 35%
Laboratory 30%
Examinations 30%
Quizzes 05%
Workshop up to 5%

To arrange a make up of an exam a note from a doctor,

etc. HAS TO be shown.

A: SCHEDULE OF LECTURES

DATE; CHAPTERS and High Priority Areas

Jan. 29 5, 6: Introduction, Errors in Chem. Analysis, Random Errors in Analyses

types of errors
sources of errors
standard deviation, variation

Jan. 31 7: Application of Statistics to Data Treatment

t-test
Q-test
least square method to derive calibration curve

Feb. 5 11: Titrimetric Methods of Analysis

the principles of titration (definitions of terms)
volumetric calculations

Feb.7 4: Aqueous Solution Chemistry

chemical equilibria
solubility product
common-ion effect
acid-base dissociation constants

Feb.13 9: Effects of Electrolytes on Ionic Equilibria

thermodynamic and concentration based equilibrium constants
ionic strength (calculations)
salt effect
activity and activity coefficient (Debye-Huckel equation)

Feb. 14 10: Application of Equilibrium Calculations to Complex Systems

steps used for solving complex equilibrium problems
calculation of solubility using mass balance, charge balance and equilibrium constants
separation of ions by precipitation

Feb.21 EXAMINATION 1

Feb. 26 12: Theory of Neutralization Titration

how an indicator work
calculations of titration curves for strong acids and strong bases and vice versa
definition of buffers, their preparation and basic calculations (pH, volumes)
titration curves for weak acids with strong bases or weak bases with strong acids

Feb. 28 13: Titration Curves for Complex Acid/Base Systems

titration curves for mixtures of strong and weak acids (strong and weak bases)
buffers based on polyfunctional species

March 5 13: Titration Curves for Complex Acid/Base Systems

titration curves for polyfunctional acids with understanding of the mechanism of the processes in each pH range

March 7 14: Application of Neutralization Titration

standards and standardization
carbonates and carbonate mixtures

March 12 15: Precipitation Titrimetry;: Complex Formation Titration

titration curves in precipitation titration (for individual ions and mixtures)
definition of terms in complex formation titration
form of EDTA in solution and their properties
calculations of the metal concentration based on EDTA titration

March 14 EXAMINATION 2

March 19 16: Introduction to Electrochemistry

redox reactions (balance, oxidant, reductant)
schematic representation of the electrochemical cell
electrode potentials (standard electrode potential)
electrolytic and galvanic cells
Nerst equation

March 21 17: Application of Standard Electrode Potential

thermodynamic potential of the cell and its determination
calculations of redox equilibrium constants
redox titration curves and equilibrium point potential
K constant calculations

March 26 18: Application of Oxidation/Reduction Titration

standard oxidants and reductants
their applications
calculation based on redox reactions

March 28 19: Potentiometry

reference electrodes
indicator electrodes
diagram of glass/calomel cell for the measurement of pH and definition of all potential playing role in the system
the principle of working of glass membrane electrode
standard addition method for calculation of ion concentration based on the cell potential
potentiometric titration

April 2 20: Other electroanalyical methods

sources of polarization
potential selectivity in electrolytic methods
coulometric methods for calculation of the amount of the analyte
comparison of coulometric and conventional titrations
voltammograms, id, E1/2
dependence of limiting current on concentration
calculation of the amount of analyte based on the diffusion current

April 4 EXAMINATION 3

April 16 21: Introduction to Spectrochemical Methods

properties of electromagnetic radiation
electromagnetic spectrum
mechanism of absorption of radiation (atoms and molecules)
transmitance and absorbance
Beer Law

April 18 23: Molecular Absorption Spectroscopy

mechanism of absorption by organic and inorganic molecules
charge transfer absorption
characteristics of spectrophotometic methods
standards addition methods to calculate the concentration of analyte
principles of photometric titration

 

April 23 23: IR and atomic spectroscopy

IR spectroscopy
calculation of concentration of components of the mixture based on the absorption of radiation
preparation of samples for measurement
function of flame
differences between AAS and AFS
sources of interferences and how to avoid them

 

April 25 EXAMINATION 4

April 30 24: Analytical separations

Filtration
Distillation
Ion exchange

May 3 24 F: An Introduction to Chromatographic Methods

elution in chromatography
how to increase separation
partition ratio, capacity factor
column efficiency: N, H
column resolution

May 7 25A: Gas-Liquid Chromatography

main parts of GC
FIT and TCD
properties of solid support
types of columns

May 9 25B,C, 26A: High Performance Liquid Chromatography

main parts of LC
application of liquid chromatography
normal and reverse phase chromatography
ion chromatography
advantages of SFC over HPLC and GC
comparison of GC and HPLC

May 14 Summary of Analytical Methods

criteria for choosing an analytical method
steps in sample preparation
water in solids
methods used for the decomposition of samples

 

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last updated:  May 29, 2002

updated by Thiri