Course: Chemical Equilibria in Solutions

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Course title Chemical Equilibria in Solutions
Course code KALCH/C533
Organizational form of instruction Lecture
Level of course Master
Year of study 2
Semester Winter
Number of ECTS credits 2
Language of instruction Czech
Status of course Compulsory-optional
Form of instruction Face-to-face
Work placements This is not an internship
Recommended optional programme components None
Lecturer(s)
  • Vytřas Karel, prof. Ing. DrSc.
  • Metelka Radovan, Ing. Ph.D.
Course content
Protolytic equilibria. Theory of acid and bases. Influence of solvents on protolytic equilibria, classification of solvents. Definition of pH for aqueous, mixed and non-aqueous solvents. Protolytic reactions in non-aqueous solvents, analytical applications (titrations in non-aqueous media). Computation of pH and composition of protolytic systems. Distribution and logarithmic diagrams. Buffers and their capacity. Complex-forming equilibria. Complexes and chelates. Formation of complexes in solutions. Step-wise complex equilibria. Distribution diagrams of step-wise complex equilibria. Conditional complex equilibria, influence of side reactions. Screening. Equilibria of precipitation reactions. Solubility product. Solubility of precipitates. Influence of protolytic reactions on solubility of precipitates. Effect of complex equilibria on the solubility. Complex formations with foreign ions. Formation of complexes with ions of precipitant. Solubility of hydroxides. Selective dissolution. Oxidation-reduction equilibria. Standard and formal oxidation.reduction potentials. Influence of protolytic, complex-forming and precipitation reactions on oxidation-reduction reactions. Extraction equilibria. Distribution coefficient, distribution ratio and degree of extraction. Extractive separation from step-wise system of metal complexes. Extraction of ion pairs. Influence of competing equilibria on the extraction.

Learning activities and teaching methods
Monologic (reading, lecture, briefing), Skills training
Learning outcomes
The aim of the object is to allow students more familiar with the use of published equilibrium data for computations of composition of equilibrium systems, mutual influences of chemical equilibria, as well as for calculations of conditional quantities and their practical use in computations of complex systems.
Student passing through the object is able to describe and solve complex computations of equilibrium systems.
Prerequisites
Student has to participate the lectures combined with practical training of computations.

Assessment methods and criteria
Written examination

Student applying for the object must first pass through basic education of chemical and instrumental analysis, as well as physical chemistry.
Recommended literature
  • Práce s publikovanými články a daty (průběžně aktualizováno)..
  • Kotrlý S., Šůcha L. Chemické rovnováhy v analytické chemii, 1988, SNTL Praha..
  • Šůcha L., Kotrlý S. Teoretické základy analytické chemie, 1971, SNTL Praha..
  • Trémillon B. Reactions in Solutions - An Applied Analytical Approach, 1997, John Wiley&Sons, Chichester..


Study plans that include the course
Faculty Study plan (Version) Category of Branch/Specialization Recommended year of study Recommended semester
Faculty: Faculty of Chemical Technology Study plan (Version): Technical Physical Chemistry (2013) Category: Engineering chemistry and chemistry of silicates 2 Recommended year of study:2, Recommended semester: Winter
Faculty: Faculty of Chemical Technology Study plan (Version): Evaluation and Analysis of Foodstuffs (2015) Category: Food industry and food industry chemistry 2 Recommended year of study:2, Recommended semester: Winter
Faculty: Faculty of Chemical Technology Study plan (Version): Evaluation and Analysis of Foodstuffs (2016) Category: Food industry and food industry chemistry 2 Recommended year of study:2, Recommended semester: Winter
Faculty: Faculty of Chemical Technology Study plan (Version): Analytical Chemistry (2013) Category: Chemistry courses 2 Recommended year of study:2, Recommended semester: Winter
Faculty: Faculty of Chemical Technology Study plan (Version): Evaluation and Analysis of Foodstuffs (2013) Category: Food industry and food industry chemistry 2 Recommended year of study:2, Recommended semester: Winter
Faculty: Faculty of Chemical Technology Study plan (Version): Analytical Chemistry (2015) Category: Chemistry courses 2 Recommended year of study:2, Recommended semester: Winter
Faculty: Faculty of Chemical Technology Study plan (Version): Analytical Chemistry (2016) Category: Chemistry courses 2 Recommended year of study:2, Recommended semester: Winter
Faculty: Faculty of Chemical Technology Study plan (Version): Technical Physical Chemistry (2016) Category: Engineering chemistry and chemistry of silicates 2 Recommended year of study:2, Recommended semester: Winter
Faculty: Faculty of Chemical Technology Study plan (Version): Technical Physical Chemistry (2015) Category: Engineering chemistry and chemistry of silicates 2 Recommended year of study:2, Recommended semester: Winter