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Topic: effervesence when passed current through KOH(aq)  (Read 4581 times)

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chemfreak

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effervesence when passed current through KOH(aq)
« on: April 23, 2005, 02:52:41 PM »
Hey all!

Was doing this lil experiment to test the conductivity of aqueous potassium hydroxide. Effervesence was seen around the electrodes... any idea why??

Thanks!

chemfreak :unsure:
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Offline jdurg

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Re:effervesence when passed current through KOH(aq)
« Reply #1 on: April 23, 2005, 06:18:12 PM »
Think about what you were doing.  You were putting an electric current through a solution of ions.  What you did was what is known as electrolysis.  The effervescence was the formation of hydrogen and oxygen resulting from the breakdown of H2O by the electric current.
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