Question- Air is 21 mole percent oxygen, that is, 0.21 atm oxygen at 1 atm. Suppose the pH of the water is 3.69 and that the concentration of iron(II) in the water is 5.30x 10-5 M, what is the potential of the corrosion reaction under the above conditions at 298 K?
I have read my textbook moreover I still don't understand so please provide me a very condensed, simple to know answer?