#february2020usmle2ck
What is the pKa of a drug?
A- The pH at which 100% drug becomes completely ionized
B- The pH at which 100% drug becomes completely unionized
C- The pH at which 50% of the drug is ionized and 50% unionized
What is the pKa of a drug?
A- The pH at which 100% drug becomes completely ionized
B- The pH at which 100% drug becomes completely unionized
C- The pH at which 50% of the drug is ionized and 50% unionized