With the most accuracy, calculate the current density of an iron reduction reaction, Fe3+ (aq) +

e- = Fe2+ (aq) on Pt electrode in 1 mol/L H2SO4(aq) solution at 25 °C at an anodic polarization

of n = 25 mV, if the exchange current density is 2 x10-3 A/cm2 and the transfer coefficient is

0.42

A) 1.95 mA/cm2

B) 3.52 mA/cm2

C) 2.19 mA/cm2

Points Earned:

Correct Answer(s): C

0.0/4.0