Multiple Choice
The amino acid methionine,HOOC-CH(CH2CH2SCH3) NH3+,has pKa1 = 2.2 and pKa2 = 9.1.If this amino acid is represented by H2L+,the major species at pH 6 is
A) HL
B) H2L+
C) L-
D) HL and L-
Correct Answer:
Verified
Correct Answer:
Verified
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