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Two structures of alanine can be drawn that have a net charge of zero, but the...

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Chemistry

Two structures of alanine can be drawn that have a net charge ofzero, but the predominant form of alanine at its pI iszwitterionic. Why is alanine predominantly zwitterionic rather thancompletely uncharged at its pI? What percent (to one significantfigure) of alanine molecules would be in the completely unchargedform at the pI? Hint: pK1 of alanine is 2.35 and pK2 is 9.87.

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4.2 Ratings (783 Votes)
The PI of alanine occurs at a pH well above the pKa of thecarboxyl groupand well below the pKa of the    See Answer
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