Question 1 A certain half-reaction has a standard reduction potential Ered =-0.1

Question

Question 1 A certain half-reaction has a standard reduction potential Ered =-0.14 v. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 1.30 v of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half- reaction to happen at the anode of the cell. is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have? 10 yes, there is a minimum. E red If so, check the 'yes" box and calculate the minimum. Round your answer to 2 decimal places. If there is no lower limit, check the "no" box no minimum Is there a maximum standard reduction potential that the half-reaction used at the cathode of this cell can have? Oyes, there is a maximum.red If so, check the "yes" box and calculate the maximum. Round your answer to 2 decimal places. If there is no upper limit, check the "no" box Ono maximum By using the information in the ALEKS Data tab, write a balanced equation describing a half reaction that could be used at the cathode of this cell. Note: write the half reaction as it would actually occur at the cathode

Explanation / Answer

yes, there is a minimum. E0red = +1.16 v

because, E0cell = E0cathode - E0anode

              1.3   = x - (-0.14)

                 = 1.16 V

no maximum.

cathode, that could be used.

the E0cathode, mustbe at least equal to or greater than 1.16 v.

half-reaction : Ag2O(s) + 2 H+ + 2 e    ---> 2 Ag(s) + H2O    E0 = +1.17 v

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