COURSE OBJECTIVE: Collection, determination and interpretation of sample information. Introduction to classical qualitative and quantitative methods of chemical analysis.
COURSE IMPLEMENTATION PROGRAM:
Week 1:
Introduction to analytical chemistry. Fundamentals. Sample-analyte-matrix-signal-information. Qualitative and quantitative information. Planning analytical work.
Week 2:
Chemical equilibrium and its role in controlling the conditions of an analytical system.
Week 3:
Titrimetric methods. Volumetry. Indicators. Titration curve. Titration end point. Equivalence point. Direct titration and retitration. Primary and secondary standards, characteristics. Standardization.
Week 4:
Introduction to acid-base titrations. Dissociation of acids and bases. Hydrolysis of salts. Ampholytes. Determination of pH in solutions. Calculation examples.
Week 5:
Nature and applicability of acid/base indicators. Standards. Titration of strong and weak acids and bases. Calculation examples.
Week 6:
Influence of pH on the composition of solutions of polyprotic acids and polyfunctional bases. Titration of polyprotic acids and polyfunctional bases. Calculation examples. Acid-base titrations in non-aqueous solvents. Selection of solvents and indicators.
Week 7:
Equilibria of chemical complexes. EDTA complexes. Complexometric titrations. Calculation examples.
Week 8:
Redox systems. Electrode potential. Nernst equation. Equilibrium constant of redox systems. Adjustment of electrode potential. Calculation examples. Partial test.
Week 9:
Redox titrations. Permanganometry. Cerimetry. Chromatometry. Bromatometry. Iodatometry. Iodimetry. Iodometry. Indicators in redox titrations. Calculation examples.
Week 10:
Precipitation. Types and properties of precipitates. Solubility of precipitates. Contaminants of precipitates and their prevention or removal.
Week 11:
Gravimetry. Types of gravimetric methods. Drying and annealing of precipitates. Weighing the sample. Calculation examples.
Week 12:
Precipitation titrations. Determinations according to Mohr, Volhard, and Fajans. Calculation examples. Gravimetric titrimetry.
Week 13:
Basics of qualitative analysis of inorganic cations and anions. Sample preparation. Systematic approach to analysis.
Week 14:
Coulometric titration.
Week 15:
Partial test.
LABORATORY PRACTICE:
1. Qualitative analysis of water-soluble salts
2. Gravimetric determination of sulfate
3. Standardization of HCl
4. Determination of Zn
5. Determination of Cu
6. Determination of chloride by the Mohr method
7. Thin-layer chromatography
DEVELOPMENT OF GENERAL AND SPECIFIC COMPETENCIES OF STUDENTS:
The student acquires basic knowledge of analytical chemistry, as a prerequisite for independent solving of analytical problems.
STUDENTS 'TEACHING OBLIGATIONS AND THEIR PERFORMANCE:
Regular attendance at classes, 2 partial tests, laboratory practice.
CONDITIONS FOR OBTAINING A SIGNATURE:
Successfully completed laboratory practice. Attendance at lectures.
TEACHING METHODS:
Lectures. Laboratory practice.
METHOD OF EXAMINATION OF KNOWLEDGE AND EXAMINATION:
There are two partial tests during the semester. Students may be exempt from the exam if they earn a sufficient number of points from partial tests, laboratory practice, and discussions. If they do not earn enough points, students must take both a written and an oral exam.
METHOD OF MONITORING THE QUALITY AND PERFORMANCE OF COURSES:
Student survey
METHODOLOGICAL PREREQUISITES:
Attended lectures and completed laboratory practice from the course General and Inorganic Chemistry.
COURSE LEARNING OUTCOMES:
1. Present the analytical system in relation to the technological process.
2. Relate the principles of chemical equilibrium to analytical methodology in the technological process.
3. Identify inorganic cations and anions in samples through systematic qualitative analysis.
4. Determine analyte concentrations using gravimetric analysis.
5. Distinguish between volumetric approaches to sample analysis.
6. Critically evaluate the selection of analytical methods based on the characteristics of the analyte and matrix.
LEARNING OUTCOMES AT PROGRAM LEVEL:
1. Describe phenomena in chemical engineering using the vocabulary and tools of the basic sciences: mathematics, physics, and chemistry.
2. Define chemical engineering problems, including their analysis and formulation for solution by applying basic principles.
3. Choose appropriate methods for analysis, modeling, simulation, and optimization.
4. Apply a scientific approach to real chemical engineering problems.
5. Apply techniques and methods with awareness of their limitations.
6. Apply the principles of professional and ethical responsibility.
TEACHING UNITS WITH ASSOCIATED LEARNING OUTCOMES AND EVALUATION CRITERIA:
Teaching unit
1. Analytical system in chemical engineering
Learning outcomes
- To define the analysis system with regard to the technological process
Evaluation criteria
- to define an analytical method
- to recognize how to determine the analytical signal and get an analytical result
- to express significant digits
- to distinguish accuracy and precision
Teaching unit
2. Qualitative chemical analysis of technological processes
Learning outcomes
- To connect the principles of chemical equilibrium with the methodology of technological process analysis
- To apply methods of selective separation of inorganic anions and cations in chemical engineering
Evaluation criteria
- to calculate the pH of the solution
- to calculate the conditions of deposition of inorganic salts
- to calculate the conditions of complex formation
- to calculate redox potential
- to plan systematic analysis of cations and anions
- to calculate the possibility of conducting the planned systematic analysis
- to apply the principles of dissolution of inorganic salts
Teaching unit
3. Quantitative chemical analysis of technological processes
Learning outcomes
- To connect the principles of chemical equilibrium with the methodology of technological process analysis
- To apply methods of gravimetric analysis in chemical engineering
- To apply volumetric analysis methods in chemical engineering
Evaluation criteria
- to plan the steps of gravimetric analysis
- to know the types of precipitant's contaminations and treatment procedures with the aim of prevention of contamination or subsequent treatment of the precipitant
- to distinguish the properties of the precipitate resulting from the particle size
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1. Z. Šoljić, Kvalitativna kemijska analiza anorganskih tvari, FKIT, Zagreb, 2003.
2. Z. Šoljić, Osnove kvantitativne kemijske analize, FKIT, Zagreb, 2003.
3. M. Kaštelan-Macan, Analitička kemija, I dio (Gravimetrija), Sveučilište Zagreb, 1991.
4. Z. Šoljić, M. Kaštelan-Macan, Analitička kemija: Volumetrija, FKIT, Zagreb, 2002.,
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1. D.A. Skoog, D.M. West, F.J. Holler, Osnove analitičke kemije, 1. izd., Školska knjiga, Zagreb, 1999.
2. D.C. Harris: Quantitative Chemical Analysis, W. H. Freedman and Co., New York, 2001.,
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