Electrochemistry remote experiment - galvanic cell - II

摘要

The paper is a free continuation of the paper presented at the REV 2009 conference, where we reported about remote experiment “Electrochemical cell characterization - is it a start of remote experiments in chemistry education?”. As a matter of fact it was meant as a small spur to the chemistry instructors to inspire them to build remote experiments, which are scarce in literature even now after three years. We want to present the continuation to the 2009 talk, showing what may be gained from a chemical remote experiment data, which wealth of information it may bring if properly used. We show how the experiment Electrochemical cell with controlled change of the electrolyte concentration and simultaneous measurement of electromotive force and electrolyte conductivity provides the possibility for the elucidation of the electrolyte conductivity, decision about strong/weak electrolytes, ions mobility and the study of Fermi level of various metals and reaction constant (http://remotelab2.truni.sk ). In the paper we want to use the experience gained in the meantime with the experiment Electrochemical cell and show all the possibility it offers. Paper may serve for inspiration to build, using ISES system, similar experiments for chemistry education.