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Titration Curves of Aminoacids




  1. Name some of the weak acid buffer systems?
  2. A phosphate buffer system was prepared at a molar concentration of 0.3. A 0.2 moles of KOH was added to this buffer system, it was noted that the pH increased from 6.9 to 7.18; a change of 0.28 pH units. Calculate the buffer index? 
  3. A student is provided with  Aspartic acid  and the following questions were asked :


             a) What can you say about the ionization behavior of the amino acid?
             b) What will be the titration curve of this amino acid?
             c) What is the pH of the acid solution if the alpha carboxyl is 1/4 dissociated?
             d) At what region of the electromagnetic spectrum does the aspartic acid absorb?


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