Question

In a field Eh measurement in which the temperature of the groundwater is 10 0C, the
measured potential of the sample is Emeasured = 52 mV, and the measured potential of the
Zobell solution is 245 mV. The reference electrode in both cases is silver-silver chloride.
What is the Eh of the sample?
Chemical analysis of a groundwater sample from a shallow unconfined aquifer overlain by
a coarse, sandy vadose zone is shown below:
pH 7.0 Fe2+ 1.5 mg/L (= 26.9 M)
The well is located in a heavily fertilized agricultural field. The Eh of the sample is not
measured. However, the pe calculated from the half-reaction
Fe(OH)3 + e + 3H+ = Fe2+ + 3H2O.
The calculated pe = 1.97.
(a). Plot this value in the pe-pH diagram given below:

Answer 1

Answer:

sorry the question is so Lendy