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.

Hno3(aq) → h+(aq) + no3−(aq). picture ii best represents the strong acid hno3. strong acids are strong electrolytes