$($a$)$ Is mass transfer important? If so$,$ please determine a

value for the mass transfer coefficient.

$($b$)$ Assuming Tafel kinetics, find the values of $\backslash$alpha c and i o$.$

Comment on the applicability of this assumption. Can

the normal Tafel fitting procedure be used for this part?

Why or why not?

$($c$)$ If the mass transfer coefficient were reduced by a factor

of $2($cut in half$),$ please predict the current that would

correspond to an applied potential of $0\mathrm{.}9$ V$.$