Draw a formula for Ala-Val-Gly (A-V-G) in its predominant ionic form at pH 7.3. You may assume for the purposes of this question that the pKa values of the acidic groups of amino acid residues in the peptide are the same as in the amino acid itself.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

since electrons are negative the answer is neagtaive

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter