A standard galvanic cell is constructed in which a Sn 2+ | Sn half cell acts as

ID: 1060063 • Letter: A

Question

A standard galvanic cell is constructed in which a Sn2+ | Sn half cell acts as the cathode. Which of the following statements are correct?

Hint: Refer to a table of standard reduction potentials.

(Choose all that apply.)

A. Mn2+|Mn could be the other standard half cell.

B. As the cell runs, anions will migrate from the other compartment to the Sn2+|Sn compartment.

C. The cathode reaction is Sn -> Sn2+ + 2e-.

D. Fe3+|Fe2+ could be the other standard half cell.

E. In the external circuit, electrons flow from the other compartment to the Sn2+|Sn compartment.

Mn2+ + 2 e Mn(s) 1.185

Sn2+ + 2 e Sn(s) 0.13

Clearly, Mn will oxidize, so

A) is true,

b) there ar eno anions...only cations or solid metals

c) false, cathode are reduction not oxidation reactions

d)Fe3+ + e Fe2+ +0.77 has a higher potential meaning it will actually reduce, so it cant be the anode...

e) True... electorns will reduce Sn+2

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