Chapter 17, Problem 17.41P

(a)

Interpretation Introduction

Interpretation:

The half reaction for upper plateau and lower plateau of given graph has to be written.

Concept introduction:

Half reaction is one of oxidation or reduction in redox reaction.  Half reaction is given by oxidation state change in reactants or products in redox reaction.

(b)

Interpretation Introduction

Interpretation:

The radius of microelectrode in cyclic voltammetry for ferrocyanide has to be calculated.

Concept introduction:

Limiting current is given as

${\text{I}}_{\text{limit}}\text{=}\text{4nFDCr}$

r is radius of electrode.

D is diffusion coefficient.

C is analyte’s concentration

F is faraday constant.

n is number of electrons transported in half reaction.