Acertain half-reaction has a standard reduction potential . an engineer proposes using this half-reaction at the cathode of a galvanic cell that must provide at least 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 cathode of the cell.

a. is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have?
b. is there a maximum standard reduction potential that the half-reaction used at the cathode of this cell can have?

a. 1.23 V

b. No maximum

Explanation:

There is some info missing. I think this is the complete question.

A certain half-reaction has a standard reduction potential E°red = +0.13V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 1.10V 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.

The standard cell potential (E°cell) is the difference between the standard reduction potential of the cathode and the standard reduction potential of the anode.

E°cell = E°red, cat - E°red, an

If E°cell must be at least 1.10 V (E°cell > 1.10 V),

E°red, cat - E°red, an > 1.10 V

E°red, cat - 0.13V > 1.10 V

E°red, cat > 1.23 V

The minimum standard reduction potential is 1.23 V while there is no maximum standard reduction potential.

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