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Asked by palaksophia | 12th Jun, 2009, 09:57: PM

Expert Answer:

The electrolysis of water as experiment is given below:

In this experiment, initially we used two copper wires, one twelve-volt battery, and some drinking water to do the tests. The process was slow and caused excessive amounts of corrosion on the copper wires and discoloration in the water. To avoid corrosion of electrodes and discoloration of water, we repeated the test using Graphit Rods as electrodes. Also to speed up the process we added some Sulfuric Acid to the water as electrolyte.

Materials Used:

Copper Wire, Graphite Rods, Sulfuric Acid, Test Tubes, Beaker, Water

Procedure:

Fillup ¼ of beaker with clear watter, secure two test tubes filled with water in the beaker in a way that test tubes are up-side down over the beaker. Mount the wires or electrodes that you have prepared and then connect the electricity.

Check the produced hydrogen and oxygen gasses in five minutes. Repeat the test with different electrodes and different amounts of electrolytes and record the results in the table below. You may want to repeat the experiment with different electrods. (Electrod is only the area that has contact with water, not the part that has insulator or plastic cover. In the above picture electrodes are identified with yellow color).

Now the readings can be recorded in :

Electrode  No Additive  5% Salt  5% Sulfuric Acid  10% Sulfuric Acid
 Aluminum        
 Steel        
 Platinum        
 Copper        
 Graphite        

Answered by  | 12th Jun, 2009, 11:23: PM

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