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3. Electrochemistry
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Q37 of 136 Page 38

Why is alternating current used for measuring the resistance of an electrolytic solution?

Direct current changes the concentration of ions in solution. Alternating current stops electrolysis from happening and keeps the concentration of ions constant so that proper measurement of resistance can be made.


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35

What is electrode potential?

36

Consider the following diagram in which an electrochemical cell is coupled toan electrolytic cell. What will be the polarity of electrodes ‘A’ and ‘B’ in the electrolytic cell?


38

A galvanic cell has an electrical potential of 1.1V. If an opposing potential of 1.1V is applied to this cell, what will happen to the cell reaction and current flowing through the cell?

39

How will the pH of brine (aq. NaCl solution) be affected when it is electrolyzed?

Questions · 136
3. Electrochemistry
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