Asked by sg
what are the basic A.A
when do protons dissociate
Acid-base titration is performed, and the amino acid is found to have 3 distinct pKg values: 2.2 for the carboxyl group and 9.2 and 10.7 for the ammonium groups. At
1) pH < 2.2
2) pH = 9.2 -10.7
3) pH > 10.7
What is the most likely net charge of the pictured amino acid?
* Very confused about the protonation and dissociation. PLEASE EXPLAIN STEP BY STEP. Really need to know this pat down for a huge exam tmr!! Thank you!!!!
when do protons dissociate
Acid-base titration is performed, and the amino acid is found to have 3 distinct pKg values: 2.2 for the carboxyl group and 9.2 and 10.7 for the ammonium groups. At
1) pH < 2.2
2) pH = 9.2 -10.7
3) pH > 10.7
What is the most likely net charge of the pictured amino acid?
* Very confused about the protonation and dissociation. PLEASE EXPLAIN STEP BY STEP. Really need to know this pat down for a huge exam tmr!! Thank you!!!!
Answers
Answered by
Anonymous
Use the Henderson-hasselbach equation and solve for the ratio at each pH.
Basic amino acids are histidine, arganine, and lysine.
Basic amino acids are histidine, arganine, and lysine.
Answered by
sg
Isn't is if pH > pKa then it dissociates and if pH < pKa it protonates.
Based off that logic (which was used to explain the answer that I did not understand) how would you go about it?
NH3 protonated is +1
COOH dissociated is -1
etc etc
Thank you for your response, pls follow up!!
Based off that logic (which was used to explain the answer that I did not understand) how would you go about it?
NH3 protonated is +1
COOH dissociated is -1
etc etc
Thank you for your response, pls follow up!!
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