a$)$ Determine the corrosion current and rate using TAFEL METHOD from the potansio$-$dynamic polarization diagram of zinc in $1N{H}_{2}S{O}_4$ solution.

b$)$ Determine corrosion current and rate using POLARIZATION METHOD from diagram of $E$ vs current $($A$)$ using tafel constants calculated in potansio$-$dynamic scan in part $($a$)$ by computer.

Use the data given to you! $B=$bab$\frac{c}{2\mathrm{.}3}(ba+bc),$Icor$=\frac{B}{R}p$

c$)$ Compare the corrosion currents and rates calculated in part $($a$)$ and $($b$)$ with the corrosion current and rate calculated by computer $($given to you$).$

$EW(Zn)=32\mathrm{.}7\frac{g}{e}q.,d(Zn)=7\mathrm{.}13g\frac{r}{c}{m}^3,1A={10}^{6}A,1mA={10}^{-3}A$