Question

Draw a titration curve for the amino acid lysine using the pKas of 2.2,9.0 and 10.0 (side chain) for the ionizable groups of lysine and indicate where the pKa=pH.

Answer 1

A titration curve for lysine using its pKas of 2.2, 9.0, and 10.0 can be drawn to show the pH at which the molecule is neutral.

Step-by-step explanation:

A titration curve for lysine can be drawn using its pKas of 2.2, 9.0, and 10.0. The pKa values represent the pH at which half of the ionizable groups are in their protonated form and half are in their deprotonated form. The titration curve will show the pH on the y-axis and the volume of titrant, such as NaOH, on the x-axis. At the pKa values of 2.2, 9.0, and 10.0, the lysine molecule will be neutral, meaning that it will have an equal number of protonated and deprotonated groups. These points on the curve will indicate where the pKa is equal to the pH.