COURSE OBJECTIVE:
The objective of this course is to teach students who have mastered the mechanisms and equilibria of homogeneous and heterogeneous chemical reactions how to apply them to a real sample, and to introduce them to the choice of analytical system and the management of the analytical process from sample to optimal information.
COURSE IMPLEMENTATION PROGRAM:
Lectures and seminars (computational exercises):
Week 1
Systematic approach to chemical analysis. Preliminary and final information. Sample and sampling. Representative sample. Partial sampling. Preparation of sample for analysis. Separation of analytes.
Week 2
Choice of method. Absolute and comparative methods. Performance characteristics of a chemical measurement system. Presentation of student seminar papers.
Week 3
Evaluation of analytical data. Errors of the analytical system. Measurable uncertainty.
Seminar: Significant digits. Statistical significance tests.
Week 4
Gravimetric determinations. Formation of sediments. Nucleation and crystal growth. Particle size and sediment purity. Precipitation reagents. Precipitation in a homogeneous medium. Electrogravimetry.
Week 5
Seminar: Gravimetric factor. Tasks for gravimetric determination.
Week 6
Titrimetry. Acid-base reactions in aqueous and non-aqueous media. pH Change during titration. Titration of polyprotic acids. Selection of indicators.
Seminar: Acid-base titration curves.
Week 7
Salt Titration. Acid solution composition as a function of solution pH. Equivalent units. Presentation of student seminar papers.
Week 8
Seminar: assignments from acid-base titrations. Repetition.
Week 9
First written test (I. Partial test)
Week 10
Oxidative reduction titrations. Redox indicators. Influence on the electrode potential of the system. Permanganatometry. Iodometry. Iodimetry. Bromometry.
Week 11
Seminar: Titration curves in redox titrations. Presentation of the students' seminar papers.
Week 12
Seminar: Tasks from oxidation-reduction titrations.
Week 13
Precipitation Titrations. Specifying the end point of the titration. Complexometric titrations. Influence of pH on titrations. Metal indicators. Presentation of student seminar papers.
Week 14
Seminar: Titration curves in precipitation and complexometric titrations. Assignments from sedimentation and complexometric titrations. Repetition.
Week 15
Second written test (II. Partial test).
Laboratory exercises (block classes in 5 semesters):
1. Gravimetric determination of sulfate.
2. Electrogravimetric determination of Cu in bronze.
3. Preparation and standardization of HCl. Statistical data processing (Q-test). Standardization of secondary standard NaOH.
4. Preparation of KMnO4 standard solution. Determination of Fe and Sb by oxidoreduction titrations.
5. Determination of Cu in real samples by oxidoreduction titration. Determination of chloride in sea water. Determination of hardness of drinking water.
DEVELOPMENT OF GENERAL AND SPECIFIC COMPETENCIES OF STUDENTS:
The student acquires the concept of a real sample and is trained to solve an analytical problem independently.
STUDENTS TEACHING OBLIGATIONS AND THEIR PERFORMANCE:
Out of the total 100 points required to pass the course, the student must obtain at least 55 points by listening to lectures and seminars, working on exercises, tests and writing a term paper.
A maximum of 25 points can be obtained in the exercises, and a minimum of 10 points must be accumulated for successful completion of the exercises. The result of the paper and the colloquium will be graded.
During the semester 2 partial tests with theoretical and computational tasks will be written. The tests are not compulsory, but they allow exemption from the exam. The tests will be marked to a maximum of 30 points, and to pass you must collect 12 points from each test, with of course the required minimum of theory (4 points) and assignments (6 points).
A maximum of 10 points can be obtained by presenting an independent seminar paper (literature research on a specific topic and presentation of 10-15 minutes). A seminar paper is not required.
Grading: 55-65 points (sufficient), 65.5-75 points (good), 75.5-85 (very good) and 85.5-100 points (excellent).
CONDITIONS FOR FOR RECEIVING A SIGNATURE:
Regular lectures (minimum 4 points) and completed laboratory exercises and passed colloquia (minimum 10 points). Total: minimum of 14 points.
TEACHING METHODS:
Lectures with integrated computational exercises (seminar) and experimental work in the laboratory.
METHOD OF EXAM OF KNOWLEDGE AND EXAM:
Partial tests, colloquia, written and oral part of the examination.
Possibility to release the written part of the exam if enough points are collected. Taking the oral part of the exam together with the teacher.
METHOD OF MONITORING THE QUALITY AND PERFORMANCE OF COURSES:
Student Survey.
Note: Second year students can only evaluate the teacher's commitment and attitude. Their knowledge of the course in the second year is too limited for their evaluation of the course to be relevant.
METHODOLOGY PREREQUISITES:
Attended lectures and completed exercises from the General and Inorganic Chemistry and Analytical Chemistry I courses.
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LITERATURA POTREBNA ZA POLAGANJE ISPITA:
1. M. Kaštelan Macan, Analitička kemija I. dio, Sveučilište u Zagrebu, Zagreb 1990.
2. Z. Šoljić, Računanje u kvantitativnoj kemijskoj analizi, Sveučilište u Zagrebu, Zagreb 1998.
3. Z. Šoljić, M. Kaštelan Macan, Volumetrija, FKIT, Zagreb 2002.
4. Z. Šoljić, Laboratorijske osnove kvantitativne kemijske analize, FKIT, Zagreb, 2006.,
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DOPUNSKA LITERATURA:
1. M. Kaštelan Macan, Kemijska analiza u sustavu kvalitete, Školska knjiga Zagreb 2003.
2. D.A. Skoog, D.M. West, F.J. Holler, Osnove analitičke kemije, Školska knjiga Zagreb, 1999.,
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