For each pH$,(1,5,8,$ and $12)$ will aspartic migrate toward the anode $(+)$ or cathode $(-)$ when placed in an electric field? $($pka values for aspartic acid $=($pKa$1=2\mathrm{.}1,$pKa$2=3\mathrm{.}86,$pKa$3=9\mathrm{.}82)$pI value $=2\mathrm{.}98)$