Chapter 2.3, Problem 8P

Use a calculator when necessary to answer the following questions.

a. What is the $\text{p}{K}_{\text{a}}$ for each $K_{\text{a}}$: ${10}^{-10},{10}^{-21}$, and $5.2\times {10}^{-5}$?

b. What is the $K_{\text{a}}$ for each $\text{p}{K}_{\text{a}}$: $7,11$, and $3.2$ ?