Find the pH of 0.1 M of the different form of histidine species. (See image attached)  b) What is the principal species at pH , pH 5, pH 8, and pH 11

Chemistry: The Molecular Science
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ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter6: Covalent Bonding
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Problem 34QRT: Estimate ΔrH° for forming 2 mol ammonia from molecular nitrogen and molecular hydrogen. Is this...
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a) Find the pH of 0.1 M of the different form of histidine species. (See image attached) 

b) What is the principal species at pH , pH 5, pH 8, and pH 11?

NH₂
OH
H3His²+ →
H₂Hist
pka1 = 1.60
HHis
pKa2 = 5.97
His
pka3 = 9.28
Transcribed Image Text:NH₂ OH H3His²+ → H₂Hist pka1 = 1.60 HHis pKa2 = 5.97 His pka3 = 9.28
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