The pka of the α‑carboxyl group of serine is 2.21 , and the pka of its α‑amino group is 9.15 . calculate the average net charge on serine if it is in a solution that has a ph of 8.30 .

Net charge in serine at pH equal to 8.30 is "0"

Explanation:

At pH > , carboxyl group exists as (charged)At pH < , carboxyl group exists as -COOH (neutral)At pH > , amino group exists as (neutral)At pH < , amino group exists as (charged)So, at pH = 8.30, both carboxyl and amino group exists in charged state.Net charge in serine at pH equal to 8.30 is "0".Structure of serine at pH equal to 8.30 has been shown below.