MUST Provide reason for each option you choose
A voltaic cell is assembled at 298K with Fe (s) and Fe(NO3)2(aq) in one compartment and Au (s) and Au(NO3)3(aq) in the other. An external wire connects the two electrodes, and a salt bridge containing KNO3 connects the two solutions,
Fe2+(aq) + 2 e à Fe (s) E° = –0.44 V
Au 3+(aq) + 3 e à Au (s) E° = 1.50 V
#7. What is the standard cell potential for the above electrochemical cell?
– 1.94 V
1.94 V
1.06 V
– 1.06 V
3.62 V
#8. What is the value of ∆G° for the above electrochemical cell?
–1123 kJ
–562 kJ
–374 kJ
1123 kJ
613 kJ
#9. Which of the following statements concerning the above electrochemical cell is
incorrect?
As the reaction proceeds, the value of Ecell decreases.
As the reaction proceeds, the value of K° remains constant.
As the reaction proceeds, the value of ∆G° approaches zero.
As the reaction proceeds, the mass of the anode electrode decreases.
All of the above statements are correct.
