The Nernst Equation at 25°C or 298 K:
Ecell = cell potential under non-standard conditions
E°cell = standard cell potential
n = number of e- transferred
Q= reaction quotient = [products]/[reactants]
What would the potential of a standard hydrogen (S.H.E.) electrode be if it was under the following conditions?
[H+] = 0.77 M
PH2 = 1.4 atm
T = 298 K
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