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Topic: Amino Acid, pKa and pH  (Read 2990 times)

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Offline TJ6900

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Amino Acid, pKa and pH
« on: October 03, 2011, 09:40:05 PM »
Given the amino acid Histidine which has it's side chain at pKa of 6.00. Now I need to find what fraction of the Histidine side chain will carry a positive charge at certain pH's.

Any guidance would be great!

Thank You!
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Offline Dan

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Re: Amino Acid, pKa and pH
« Reply #1 on: October 04, 2011, 03:25:58 AM »
Henderson-Hasselblach equation...
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Offline TJ6900

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Re: Amino Acid, pKa and pH
« Reply #2 on: October 04, 2011, 10:12:49 AM »
Solve for the base/acid ratio? One of them of course carrying a positive charge. Makes sense...
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