Histidine is a common amino acid found in many proteins and

Last updated: 6/28/2023

Histidine is a common amino acid found in many proteins and other natural sources There are 3 deprotonation steps of this substance with three acid dissociation constants K 2x10 2 K 9 5x10 7 and K3 8 3x10 10 when ionic strength is 0 1 as follows a If the pH of a histidine solution is 6 05 which form of histidine is present in the solution b How many ml of 0 1135M NaOH are needed to get a buffer solution with 70 nl