Question #199927

The standard electrode potential for the Fe2+ ↔ Fe3+ + e – half reaction is -0.770 V. a)

Using the Nernst equation [ E = E°− ( 0.059/n) log [Oxid]/[Red]] calculate the voltage of this

half-cell when the [Fe3+] is 1.0 x 10 -3 and [Fe2+] is 1.0 x 10 -1

. b) Calculate the approximate

equilibrium constant (K) for the half reaction.

Expert's answer

a. V= 1.1v

b. 3

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