Calculate the pH during the titration of $50\mathrm{.}00$ mL of $0\mathrm{.}1$ M acetic acid $($HOAc$)$ with $0\mathrm{.}1$ M NaOH at $25$C$\backslash$deg after the addition of the following volumes of reagent: $($a$)0$ mL$,($b$)10\mathrm{.}00$ mL$,($c$)25\mathrm{.}00$ mL$,($d$)$ at equilance point, $($e$)50\mathrm{.}10$ ml