**After completing this activity, students will be able to:**

- Recall basic calculations and definitions about acid-base chemistry.
- Interpret the pH scale and use K
_{w}to draw relationships between [H^{+}] and [OH^{–}].

- Write reactions represented by K
_{a}and K_{b}for monoprotic acids.

- Interpret the magnitudes of K
_{a}and K_{b}.

- Identify conjugate acid-base pairs.

- Calculate the pH of strong acid, strong base, weak acid and weak base solutions

- Interpret the pH scale and use K
- Determine when using the quadratic formula is necessary to determine the pH of a solution.
- Find the fractions of association for weak acids and weak bases

**Kate Mullaugh, College of Charleston (mullaughkm@cofc.edu)**