Need help with these for studying asap please

Calculate the isoelectric point of the following peptide: TRWGLKMES. Report your answer to 2 decimal points. Refer to Table 4-1 for the pKa values of the side chain functional groups. Assume that the pKa values for the N-terminal amino group and the C-terminal carboxyl groups are 8 and 3.5 respectively. Your Answer: Assuming that the pKa for the N-terminal amino group is 8 and the pKa for the C-terminal carboxyl group is 3.5, what is the net charge of the following peptide at pH 11.5? Peptide = TRAGLKMES 2 1 0 +1 +2