DVDs and Videos > Chemistry

Prog16- Electrochemical Techniques Age: 16 Years-Adult; Time: 30 mins; Year: 1995 Format code; R = DVD, V = VHS, C = CD-ROM

Program Description

USING GALVANIC CELLS Running time: 4:09 mins. Introduction to the components of galvanic cells; examples of different types of electrodes; caring for electrodes; calibration of digital voltmeters; using salt bridges. DETERMINATION OF STANDARD ELECTRODE POTENTIALS Running time: 4:46 mins. Background to measuring standard electrode potentials; preparing the sample cell; preparing the reference cell; using a salt bridge; using digital voltmeters; what do if readings drift; taking measurements; caring for the electrodes; plotting the results. ELECTROCHEMICAL METHOD FOR DETERMINING SOLUBILITY PRODUCTS Running time: 2:34 mins. Introduction; preparing the sample solution; preparing the reference solution; setting up the measuring system; taking readings; handy hints for obtaining good data; obtaining solubility products for a variety of AgX salts. USING ELECTROCHEMICAL CELLS TO DETERMINE THERMODYNAMIC PARAMETERS Running time: 2:06 mins. Introduction to the thermodynamic effects on electrode potentials; assembling a "button cell" (zinc/silver oxide alkali cell) and electrochemical circuitry; taking readings; plotting the results. USING CONDUCTIVITY CELLS Running time: 3:19 mins. Introduction to the components of dipping conductivity cells; setting up the equipment; measuring the cell constant; measuring the conductivities of sample solutions; caring for dipping electrodes. CONDUCTIOMETRIC TITRATIONS Running time: 6:05 mins. Introduction to conductiometric titrations; preparing the sample solutions; testing the system; setting up the burette; taking measurements; caring for the electrode; plotting the results. USING AN AUTOMATIC TITRATOR Running time: 3:57 mins. Background to multiple sampling techniques; setting up an automatic titrator; carrying out a typical titration; plotting the results; manipulating the data, e.g. 1st derivative plots; shut-down procedure.