Define pH and explain its relationship to the hydronium ion concentration.

pH is the negative logarithm of the hydronium ion concentration. It indicates the acidity of a solution.

What is the pOH of a solution and how is it related to the hydroxide ion concentration?

pOH is the negative logarithm of the hydroxide ion concentration. It indicates the basicity of a solution.

pOH = 14 - pH = 14 - 3.0 = 11.0

pH = -log(1.0 × 10⁻⁵) = 5.0

[OH-] = 10^(-pOH) = 10^(-2.0) = 0.01 M

I can calculate pH and pOH values for aqueous solutions.

1
According to the Brønsted-Lowry definition, an acid donates a proton, while a base accepts a proton.
2
The pH of a solution is the negative log of the hydronium concentration, while pOH is the negative log of the hydroxide concentration.
3
A strong acid has a low pKa value and will completely deprotonate in solution, while a weak acid has a higher pKa and only partially deprotonates.