Chapter 14, Problem 80E

Determine the pOH of each solution and classify it as acidic, basic, or neutral.

a. $\left[{\text{OH}}^{-}\right]=4.5\times {10}^{-2}\text{M}$

b. $\left[{\text{OH}}^{-}\right]=3.1\times {10}^{-12}\text{M}$

c. $\left[{\text{OH}}^{-}\right]=5.4\times {10}^{-5}\text{M}$

d. $\left[{\text{OH}}^{-}\right]=1.2\times {10}^{-2}\text{M}$