Hi!Can someone help me?

When GABA (gamma-aminobutyric acid) is dissolved in water , in the hydrolyzation process , only the hydrogen atom from the carboxyl group reacts with water ,or there is an additional reaction between water and the amino group , to release another two hydrogen atoms? ( to shorten the question , when GABA is dissolved in water , how many hydrogens does it release?)

1 Answer
anor277
Jul 9, 2018

And so we want to assess the acid-base behaviour of...

#underbrace(H_2NCH_2CH_2CH_2CO_2H)_(gamma-"aminobutyric acid")#

Explanation:

This site reports that #pK_a=4.23#, and #pK_b=10.43#, and it might be that in AQUEOUS solution we gots the zwitterion, i.e. #""^(+)H_3NCH_2CH_2CH_2CO_2^(-)#, as the major species.

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