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Amino Acid Titration

  • Thread starter lha08
  • Start date
  • #1
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Homework Statement


Lets say we titrate an amino acid with a strong base (NaOH), like I know that the hydrogen of the carboxyl (COOH) group will be pulled away followed by the amino group (NH3+), but is there a particular reason why the hydrogen on the carboxyl group is pulled out first rather than the amino acid? Does it have to do with the repulsion caused by the NH3+ group that causes the carboxyl hydrogen to come off first?
Thanks.


Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
Borek
Mentor
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Which is usually a stronger acid - -COOH, or -NH3+?
 
  • #3
164
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Which is usually a stronger acid - -COOH, or -NH3+?
Is COOH the stronger acid? but then NH3+ is a weak acid? (i somehow thought that NH3+ acts as a base...)
 
  • #4
Borek
Mentor
28,445
2,841
-NH2 is a base, -NH3+ is a conjugate acid.

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