In an electrolytic cell, the positive electrode is the ___
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What is an electrolytic cell? (b) The negative terminal of a voltage source is connected to an electrode of an electrolytic cell. Is the electrode the anode or the cathode of the cell? Explain. (c) The electrolysis of water is often done with a small amount of sulfuric acid added to the water. What is the role of the sulfuric acid? (d) Why are active metals such as Al obtained by electrolysis using molten salts rather than aqueous solutions?
An electrolytic cell of two copper electrodes in a 1.00 M copper sulfate solution was run with the following results:
one electrode gained 0.234 g mass
the other electrode lost 0.236 g mass
the area under the curve was 713.58 A s
Use the accepted molar mass of copper to calculate the number of millimoles of copper added to the first electrode.
In an electrolytic cell, the sign of the cell voltage is
positive
negative
neutral