ElectrochemistryHard

Question

Some standard electrode potentials are given:

Fe2+ + 2e− → Fe; E° = −0.440 V

Fe3+ + 3e− → Fe; E° = −0.036 V

The standard electrode potential for: Fe3+ + e− → Fe2+, is

Options

A.−0.476 V
B.−0.404 V
C.+0.988 V
D.+0.772 V

Solution

$E_{Fe^{3 +}|Fe^{2 +}}^{o} = \frac{3 \times E_{Fe^{3 +}|Fe}^{o} - 2 \times E_{Fe^{2 +}|Fe}^{o}}{3 - 2} = + 0.772\text{ V}$

Create a free account to view solution

View Solution Free
Topic: Electrochemistry·Practice all Electrochemistry questions

More Electrochemistry Questions

Molar conductance of 0.1 M acetic acid is 7 ohm-1 cm2 mol-1. If the molar cond. of acetic acid at infinite dilution is 3...Given : Eº(Cu2+ | Cu) = 0.337 V and Eo(Sn2+ | Sn) = - 0.136 V. Which of the following statements is correct?...The reaction Zn(s) + 2AgCl(g) → ZnCl2(aq) + 2Ag(s) occurs in the cell Zn |ZnCl2 (1M solution), AgCl(s) | Ag. The n...AgNO3(aq.) was added to an aqueous KCl solution gradually and the conductivity of the solution was measured. The plot of...Using the standard potential values given below, decide which of the statements I, II, III, IV are correct. Choose the r...