Attempt titrating an amino acid against a wea | vedclass

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Question

(B) The number of ionizable functional groups in an amino acid depends on its structure. An amino acid typically contains at least one amino group $(-

Vedclass · Accepted Answer

$2$

Vedclass · Answer

(B) The number of ionizable functional groups in an amino acid depends on its structure. An amino acid typically contains at least one amino group $(-NH_2)$ and one carboxyl group $(-COOH)$. During titration,these groups dissociate at specific $pH$ values. For a neutral amino acid,the carboxyl group and the amino group are the primary ionizable sites,resulting in $2$ dissociating groups. Acidic amino acids contain an additional carboxyl group in the side chain,while basic amino acids contain an additional amino group,leading to $3$ or more dissociating groups.

Attempt titrating an amino acid against a weak base and discover the number of dissociating (ionizable) functional groups in the amino acid.

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