Consider the voltaic cell: a. Determine the direction of

Problem 47E

Consider the voltaic cell:

a. Determine the direction of electron flow and label the anode and the cathode.

b. Write a balanced equation for the overall reaction and calculate .

c. Label each electrode as negative or positive.

d. Indicate the direction of anion and cation flow in the salt bridge. 

                                                             Step by Step Solution

Step 1 of 3

A voltaic cell is an electrochemical cell with two electrodes. The electrode which undergoes oxidation is called anode and the one which undergoes reduction is called cathode.

For a pair of electrodes, we can determine which one is anode and which is cathode by knowing their standard reduction potentials. Which have the least positive or highest negative potential undergo oxidation. whereas the one with least negative or highest positive potential undergoes reduction and acts as cathode.