1. komponenta

Lecture type	Total
Practicum	30

* Load is given in academic hour (1 academic hour = 45 minutes)

COURSE OBJECTIVES:
Experimental confirmation of theoretical relationships; familiarization with measurement methods; mastering measuring skills and processing measurement results. Some exercises include simple devices in order to understand the measurement methods, while others use modern measuring devices and are related with the physico-chemical characterization of the observed system. The student prepares for independent work in the laboratory.

COURSE CONTENT:

EXERCISES
The course content is divided into 7 separate exercises (each exercise takes 4 hours):
1) Conductometry: Independent experimental work with a commercial digital conductometer with the help of written instructions. Interpretation of results for strong electrolytes and determination of molar conductivity at infinite dilution. Interpretation of results for weak electrolytes and determination of dissociation equilibrium constant;
2) Potentiometry: Independent work with a pH-meter with the help of written instructions. The sensitivity of the glass electrode as a sensor and its characteristics (standard electrode potential and slope). Calibration of the glass electrode with one and two buffers. Potentiometric titration of a weak acid. Processing of results for weak acid titration (determining the dissociation equilibrium constant of a weak acid);
3) Transport number of ions: Independent connection of Hittorf's apparatus according to the scheme. Independent movement of ions in solution ? transport number. Coulometry. Determination of transport number of ions in solution. Calculation of the molar conductivity of ions from the molar conductivity of the electrolyte using the Hittorf transport number;
4) Calorimetry: Measurement with a simple reaction calorimeter and consideration of its construction (mixer, burette, temperature sensor, heater for calibration). Thermogram analysis. Determination of the heat capacity of the calorimeter and the enthalpy of neutralization;
5) Chemical kinetics: 1st order kinetics. Examination of the reaction order. Determination of reaction rate coefficient. Dependence of chemical reaction rate on temperature and activation energy;
6) Equilibrium of dissociation reaction: independent measurements with UV-VIS spectrophotometer and pH-meter. Determination of equilibrium constant of dissociation of weak acid;
7) Data processing and analysis: data processing on a computer (tables and figures) , display of linear dependence and determination of the slope and intercept of the linear function, reliability of measurement results, measurement uncertainty and inaccuracy.

1. Osnovni praktikum fizikalne kemije 1 (skripta), T. Begović, D. Kovačević, Osnovni praktikum fizikalne kemije 1 (skripta, 2022), T. Begović, D. Kovačević, 2022.
2. Elements of Physical Chemistry, 8th Ed., P. W. Atkins, J. de Paula, Elements of Physical Chemistry, (8th ed., Oxford University Press, Oxford, 2014.), P. W. Atkins, J. de Paula, Oxford University Press, Oxford, 2014.
3. Fizikalna kemija (rukopis, dostupan u Središnjoj Kemijskoj Knjižnici i na Merlinu), T. Cvitaš, Fizikalna kemija (rukopis, dostupan u Središnjoj Kemijskoj Knjižnici i na Merlinu, 2020), T. Cvitaš, 2020.
4. Rješavanje računskih zadataka u kemiji, I i II dio, T. Cvitaš, I. Planinić, N. Kallay, Rješavanje računskih zadataka u kemiji, I i II dio (Hrvatsko kemijsko društvo, Zagreb, 2012)., T. Cvitaš, I. Planinić, N. Kallay, Hrvatsko kemijsko društvo, Zagreb, 2012.

Enrollment :
Enrolled : Physical Chemistry 2
Passed : General Chemistry Laboratory 2

Izborni kolegiji PRAKTIKUM FIZIKALNE KEMIJE - Regular study - Biology and Chemistry Education