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Calculate the Eh for (a) acid mine drainage (pH = 4) and (b) ocean water (pH...

Calculate the Eh for (a) acid mine drainage (pH = 4) and (b) ocean water (pH = 8.3), in equilibrium with atmospheric oxygen (assume pO2 = O2 fugacity = 0.2 bar) at 25 °C.

Eh = 1.23 + 0.01479 log10[O2] – 0.05916 pH. [O2] = oxygen fugacity. (3 pts)

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