Shown below is the chemical structure of F, one of the 20 proteinogenic amino acids. This amino acid is also occasionall

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Shown below is the chemical structure of F, one of the 20 proteinogenic amino acids. This amino acid is also occasionall

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Shown Below Is The Chemical Structure Of F One Of The 20 Proteinogenic Amino Acids This Amino Acid Is Also Occasionall 1
Shown Below Is The Chemical Structure Of F One Of The 20 Proteinogenic Amino Acids This Amino Acid Is Also Occasionall 1 (94.91 KiB) Viewed 32 times
Shown below is the chemical structure of F, one of the 20 proteinogenic amino acids. This amino acid is also occasionally used as a buffer system in parenteral preparations. F OH NH2 HN (i) Redraw F and insert the valence non-bonding electron pairs on each appropriate atom of the structure. Amino acid F has three pKa values (pKaj = 1.82, pKa2 = 6.00, pka3 9.17). (ii) Draw the predominant structure of amino acid F as it would exist at (a) pH 4 and (b) pH 11. Explain your answers. 17.5 marks]
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