# Determining Redox Potentials of Acid Water

What is the redox potential of an acid mine water sample having Fe3+ = 7.00E-3 M and Fe2+ = 3.00E-4 M given that E0 (standard electrode potential) for the Fe3+/Fe2+ couple is 0.77V

I have failed at this problem several times so it would be great if you could work it out.

Hint: Nernst equation.

Â© BrainMass Inc. brainmass.com March 4, 2021, 6:06 pm ad1c9bdddfhttps://brainmass.com/chemistry/electrochemical-potentials/determining-redox-potentials-acid-water-29561

#### Solution Summary

The answer is given as an equation.

$2.49