Chem doubt

2 Answers

71
Vivek @ Born this Way ·

At the isoelectric point, the molecule shouldn't have a net charge. In that case, as NH3 is already positively charged, we wish to have one of the H - from two carboxylics to be removed.

The pH for that should be the mean of the two Pka's of the COOH groups.

i.e, pI = 3.22

262
Aditya Bhutra ·

thnx vivek.

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