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Author Question: Which of the following is a definition of the isoelectric point of an amino acid? a. The pH at ... (Read 141 times)

captainjonesify

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Which of the following is a definition of the isoelectric point of an amino acid?
 a. The pH at which an amino acid has no net charge
  b. The pH at which the -NH2 group is completely protonated
  c. The melting point of an amino acid
  d. The conductivity of a 1 M solution of an amino acid in water

Question 2

What is the approximate value of the pKa of the -NH3+ of amino acids?
 a. 2
  b. 5
  c. 9
  d. 12

Question 3

What is the approximate value of the pKa of the -CO2H of amino acids?
 a. 2
  b. 5
  c. 9
  d. 12



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T4T

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Answer to Question 1

a

Answer to Question 2

c

Answer to Question 3

a



captainjonesify

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Both answers were spot on, thank you once again



T4T

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