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This TI-83 program is designed to solve the following types of Electrochemistry problems

1. Nernst Equation (E, E0, n, Q, T)
2. Electolytic Metal Plating


The Nernst equation sub-program can solve the Nernst Equation for Standard Electrode Potential (E0), actual potential (E), number of moles of electrons (n), reaction quotient (Q), and temperature in Kelvins. The form of the Nernst equation used is E = E0 - (RTlnQ)/(nF). It is therefore useful for any condition of temperature, unlike the Nernst equation of the form E = E0 - (.0592logQ)/n which is only valid at 25 degrees celsius.

The second subprogram solves electroplating problems. It is capable of calculating time required for plating, amperes required for plating, moles of electrons transferred, moles of metal plated, grams of metal plated, and molar mass of the metal plated. When the program asks for the ionic charge of the metal, you must enter the number of electrons that are gained by the metal when it is reduced at the cathode. For instance, in the conversion of Al3+ ion to elemental aluminum, you would enter "3" as the ionic charge (without the quotes!)

As with any program freely distributed, you are free to pass this program along, provided you do not charge for it. I take no responsibility for the results you get using the program. 

As a word of warning: The program should be used only by persons who UNDERSTAND the application of these laws. For instance, if you do not know how to calculate a correct value of Q, the reaction quotient, your answers will be wrong even if the program works perfectly.

Andy Allan
www.sciencegeek.net

