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Consider the following sequence for aspartic acid: The pH (Isoelectric point) of aspartic acid is:

Options

  1. A3.65
  2. B2.77
  3. C5.74
  4. D1.88

Correct answer

B. 2.77

Step-by-step solution

p H = p K 1 + p K 2 2 = 1.88 + 3.65 2 = 5.53 2 = 2.765 ≈ 2.77 At isoelectric point of aspartic acid both carboxylic and amino from co-exist.

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