If phosphate groups in DNA are completely ionized at pH 7, what is the pKA of the phosphate groups? Please explain how you got there!
Solution:
Phosphate groups are completely ionized at pH 7. At this pH, it behaves as fully ionized state where it bears two negative charges. The presence of dianion increases its acidity, therefore pka of phosphate aproaches zero.
If phosphate groups in DNA are completely ionized at pH 7, what is the pKA of...