Cysteine is an amino acid with S as the donor atom. It forms complexes with Fe2*,Hg2+, Mg2+, and Zn2+. Which set of pKf assignments is CORRECT for the formationof complexes of these metals with cysteine?Fe-complexHg-complexMg-complexZn-complexSet ApKf = 6.2pKf = 14.4pKf = <4pKf = 9.8Set BpKf = 14.4pKf = <4pKf = 6.2pKf = 9.8Set CpKf = 6.2pKf = 9.8pKf = <4pKf = 14.4Set DpKf = 6.2pKf = <4pKf =14.4pKf = 9.8A. Set AB. Set BC. Set CD. Set D

The donor atom at cysteine residue is S.

Cysteine is an amino acid with S as the donor atom. It forms complexes with Fe2*, Hg2*, Mg²*, and Zn2*. Which set of pKf assignments is CORRECT for the formation of complexes of these metals with cysteine?

Cysteine is an amino acid with S as the donor atom. It forms complexes with Fe2, Hg2, Mg², and Zn2. Which set of pKf assignments is CORRECT for the formation of complexes of these metals with cysteine?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter26: Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 26.30QAP

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Question

Cysteine is an amino acid with S as the donor atom. It forms complexes with Fe2*,
Hg2+, Mg2+, and Zn2+. Which set of pKf assignments is CORRECT for the formation
of complexes of these metals with cysteine?
Fe-complex
Hg-complex
Mg-complex
Zn-complex
Set A
pKf = 6.2
pKf = 14.4
pKf = <4
pKf = 9.8
Set B
pKf = 14.4
pKf = <4
pKf = 6.2
pKf = 9.8
Set C
pKf = 6.2
pKf = 9.8
pKf = <4
pKf = 14.4
Set D
pKf = 6.2
pKf = <4
pKf =14.4
pKf = 9.8
A. Set A
B. Set B
C. Set C
D. Set D

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