Topic: pKa question (Read 5010 times)

Paulo1913 · « **on:** May 15, 2009, 09:37:56 PM »

What is the answer to this question?

Explain why lysine has 3 pKa values of 2.18, 8.95 and 10.55?

I have no idea....

sjb · « **Reply #1 on:** May 16, 2009, 04:55:39 AM »

What does having a pKa mean, in terms of the chemical?

Floreaa · « **Reply #2 on:** May 16, 2009, 10:22:20 AM »

Are you sure it is pKa? Because I think that the problem said K_a (acidity constant). Am I right?

Loyal · « **Reply #3 on:** May 17, 2009, 03:34:16 AM »

Are you sure it is pKa? Because I think that the problem said K_a (acidity constant). Am I right?

Those look like pK_a not K_a

Paulo1913 · « **Reply #4 on:** July 09, 2009, 11:21:06 PM »

Yes they are Pka. If they were Ka wouldn't they be decimals?

AWK · « **Reply #5 on:** July 10, 2009, 02:59:55 AM »