### pKa of conjugate acid relating to strength of base

Posted:

**Mon Jan 20, 2020 4:25 pm**My friend and I are having trouble understanding the homework question 6C.13.

Can someone please clarify what the question is asking? We were given pKa and we decided from the question to solve for pKb, but now were are unsure what these values mean and how we should rank them.

Thanks in advance!

Can someone please clarify what the question is asking? We were given pKa and we decided from the question to solve for pKb, but now were are unsure what these values mean and how we should rank them.

Thanks in advance!