10 Questions
What is the primary reason for using an alternating current (AC) source of power?
To resolve the first difficulty of connecting a solution to a bridge
What is the purpose of the conductivity cell?
To confine the solution between the electrodes
What is the material used to coat the platinum electrodes?
Platinum black
What is the symbol used to denote the cell constant?
G*
What is the unit of the cell constant?
Length^-1
Why is it inconvenient to measure l and A?
Because it is difficult to accurately measure l and A
How is the cell constant usually determined?
By measuring the resistance of the cell containing a solution whose conductivity is already known
What is the purpose of electrochemically depositing finely divided metallic Pt on the electrodes?
To increase the surface area of the electrodes
What is the equation that gives the resistance of the solution column?
R = r l/A
What is the shape of the solution column?
Cylindrical
Test your understanding of electrochemical cells, galvanic cells, and electrochemical principles. Arrange metals in the order of displacement and solve problems on corrosion and the Hydrogen Economy.
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