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The electrolysis of Sodium Sulfate (Na2SO4)
Member rating: No Rating | Words: | Submitted: Tue Aug 19 2003
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Electrolysis I. The electrolysis of Sodium Sulfate (Na2SO4) Data Collection The side of anode and cathode The color before electrolysis The changes during electrolysis Anode Colorless The color stays the same and there is bubble. Cathode Colorless The carbon produces purple color and there is bubble. Data analysis & Conclusion From the experiment, after the electrolysis of Na2SO4, the color of cathode side becomes purple and there is bubble. The same thing happens in the other side, which is anode, bubble is also formed. Reduction happens in cathode, whereas oxidation happens in anode. In cathode, hydrogen (H2) is formed and in anode, Oxygen (O2) is formed. The reaction is in the following: Cathode --> 2H2O + 2e- --> 2OH- + H2 Anode --> 2H2O --> 4H+ + O2 + 4e- In cathode, the product the reduction is OH-, which is base becomes purple after being added by phenolphthalein and in anode, the product...
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