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Topic: Electrochemical cells- concentration  (Read 2250 times)

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Offline gonsuigonsui

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Electrochemical cells- concentration
« on: March 18, 2010, 01:57:06 AM »
when we decrease the concentration of Zn solution, what would happen to the voltage of the electrochemical cells of Zn|Pb ?

Offline cliverlong

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Re: Electrochemical cells- concentration
« Reply #1 on: March 18, 2010, 07:32:29 AM »
What are the half-cell equations? Which one is oxidizing and which is reducing? Why?

What are the standard electrode potentials of the half-cells?

What is the significance of the word standard above?

What does Le Chatelier predict about the position of equilibrium if you change the concentration of one electrolyte?

What does such a shift in equilibrium position do to the electrode potential of that half-cell?

What is the effect on voltage of the whole cell?

Clive

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