Galvanic Cells

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Galvanic Cell

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Electrode Potential

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Measuring Electrode Potential

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Important Questions

Calculate the potential of hydrogen electrode in contact with a solution whose is .

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Depict the galvanic cell in which the reaction takes place. Further show:
(i) Which of the electrode is negatively charged?
(ii) The carriers of the current in the cell.
(iii) Individual reaction at each electrode.

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Predict the products of electrolysis in each of the following:
(i) An aqueous solution of with silver electrodes.
(ii) An aqueous solution of with platinum electrodes.
(iii) A dilute solution of with platinum electrodes.
(iv) An aqueous solution of  with platinum electrodes

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Describe the construction and working of calomel electrode.

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a) Draw labelled diagram of Standard Hydrogen Electrode ( SHE ).
Write its half cell reaction of value.
b) Calculate for the following reaction :
.
(Given : ).

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A standard hydrogen electrode has a zero potential because:

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Write the cell reaction and calculate cell of the following electrochemical cell:


V
V

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Calculate the electrode potential at a copper electrode dipped in a solution of copper sulphate at . The standard electrode potential of system is at .

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Draw a labelled diagram of 'Standard Hydrogen Electrode'.

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Saturated solution of is used to make salt bridge because:

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