Question

Font 9 11.74 10 11.76 Titration of Unknown Amino Acid 32 35 36 10 40 41 50 51 53 13 -12 11 10 9 76 5 3 2 1 0 12 34s s 78910 Ha Titrant Added (mL) NaOH → → 57 61

Answer 1

4) As observed in the titration curve, there are two observed pH jumps, that means that we are in the presence of a diprotric amino acid.

5) As a solution of an amino acid is titrated, it increases its pH, which means, increasing the concentration of H + ions in solution, this produces a competition phenomenon, where there are more H + ions available, than places to neutralize, making more and more difficult to neutralize, creating a resistance.