Syllabus
LIST OF EXERCISES
Partition equilibrium: study of the system: benzoic acid-water-toluene.
Buffer capacity: determination of buffer capacities of acetic buffers at various compositions.
Conductivity: determination of the acidity constant of various weak acids using the Ostwald's dilution law.
Dissociation constant: spectrophotometric determination of p-nitrophenol acidity constant from the dependency of the degree of ionization on pH.
Activation energy: estimation of the activation energy of decomposition of colored complex from rate constants obtained at various temperatures by spectrophotometric measurements.
Reaction order: determination of reaction orders of reactants using the initial rate method.
Annotation
Principles of fundamental phenomena are demonstrated in six exercises. The students learn the experimental methods for determination of important physico-chemical constants and characteristics.
Required data are obtained by means of chemical analysis (extraction, titration) and by common instrumental methods (UV-VIS spectrophotometry, potentiometry, conductometry). Emphasis is given on all individual steps of the experiments - measurement, data collection, their appropriate evaluation and interpretation of results.