It has been proposed that under oxic conditions, the oxidizing agent, which actu

Question

It has been proposed that under oxic conditions, the oxidizing agent, which actually controls the redox potential of seawater, may be hydrogen peroxide (H2O2) rather than molecular oxygen (O2). The proposed controlling half reaction is:

O2 + 2H+ + 2e- = H2O2

Concentraion of H2O2 = 1.0 x 10-11 moles/kg water

Partial Pressure of O2 = 0.2 atmosphere

pH of Seawater = 8.0
T = 25 C

Calculate the redox potential in volts that you would expect for seawater under the control of the H2O2/O2 couple. Show all steps of calculation and give any assumptions.

Explanation / Answer

It has been proposed that under oxic conditions, the oxidizing agent, which actu

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