Following is a structural formula for imidazole, a building block of the essential amino acid histidine It is also a building block of histamine, a compound all too familiar to people with allergies and takers of antihistamines. When imidazole is dissolved in water, proton transfer to it gives a cation. Is this cation better represented by structure A or B? Explain. H + H,O= + ОН or H H. Imidazole (A) (В)

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Following is a structural formula for imidazole, a building block of the essential amino
acid histidine
It is also a building block of histamine, a compound all too
familiar to people with allergies and takers of antihistamines. When imidazole is
dissolved in water, proton transfer to it gives a cation. Is this cation better represented by
structure A or B? Explain.
H
+ H,O=
+ ОН
or
H
H.
Imidazole
(A)
(В)
Transcribed Image Text:Following is a structural formula for imidazole, a building block of the essential amino acid histidine It is also a building block of histamine, a compound all too familiar to people with allergies and takers of antihistamines. When imidazole is dissolved in water, proton transfer to it gives a cation. Is this cation better represented by structure A or B? Explain. H + H,O= + ОН or H H. Imidazole (A) (В)
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