ElectrochemistryHard
Question
Given standard electrode potentials :
Fe3+ + 3e- → Fe ; Eo = - 0.036 volt
Fe2+ + 2e- → Fe; Eo = - 0.440 volt
The standard electrode potential Eo for Fe3+ + e- → Fe2+
Fe3+ + 3e- → Fe ; Eo = - 0.036 volt
Fe2+ + 2e- → Fe; Eo = - 0.440 volt
The standard electrode potential Eo for Fe3+ + e- → Fe2+
Options
A.-0.476 volt
B.-0.404 volt
C.0.404 volt
D.0.772 volt
Solution
Fe3+ + 3e- → Fe , - 0.036 volt
Fe → Fe2+ + 2e-, 0.44 volt
Fe3+ → + e- Fe2+
+ 3 × 0.036f - 2 × 0.44 × f = - 1 × Eo × f
Eo = 0.772 Volt
Fe → Fe2+ + 2e-, 0.44 volt
Fe3+ → + e- Fe2+
+ 3 × 0.036f - 2 × 0.44 × f = - 1 × Eo × f
Eo = 0.772 Volt
Create a free account to view solution
View Solution FreeMore Electrochemistry Questions
Amount of oxalic acid present in a solution can be determined by its titration with KMnO4 solution in the presence of H2...The gas x at 1 atm is bubbed through a solution containig a mixure of 1 My- and Mz- at 25oC, If the order of reduction p...Na-amalgam is prepared by electrolysis of NaCl solution using liquid Hg as cathode. How long should the current of 10 am...The EMF of a concentration cell consisting of two zinc electrodes, one dipping into sol. of zinc sulphate & the other in...The value of molar conductivity of HCl is greater than that of NaCl at a particular temperature because...