Question

A standard galvanic cell is constructed with Co²⁺|Co and Ag⁺|Ag half cell compartments connected by a salt bridge. Which of the following statements are correct?

Hint: Refer to a table of standard reduction potentials.

(Choose all that apply.)

A- Ag⁺ is reduced at the cathode.

B- Ag is oxidized at the anode.

C- The cathode compartment is the Co²⁺|Co compartment.

D- In the external circuit, electrons flow from the Ag⁺|Ag compartment to the Co²⁺|Co compartment.

E- As the cell runs, anions will migrate from the Ag⁺|Ag compartment to the Co²⁺|Co compartment.

Answer 1

A standard galvanic cell is constructed with Co²⁺|Co and Ag⁺|Ag half cell compartments connected by a salt bridge. Which of the following statements are correct?

Solution

Reduction potential of the Ag+ is 0.80 V and Co^2+ is 0.28 V

A- Ag⁺ is reduced at the cathode. = True because reduction potential of the Co^2+ is lower therefore it reduces the Ag+

B- Ag is oxidized at the anode = False .

C- The cathode compartment is the Co²⁺|Co compartment = False .

D- In the external circuit, electrons flow from the Ag⁺|Ag compartment to the Co²⁺|Co compartment.= False

E- As the cell runs, anions will migrate from the Ag⁺|Ag compartment to the Co²⁺|Co compartment = False