2. A solution that contains equal concentrations of hydrogen and hydroxide ions is _____. a.an acid b.a base c.neutral d.ionized

3. The pH scale allows scientists to define the acidity of a substance on a scale of _____. a.0-7 b.0-14 c.1-7 d.1-14

4. Identify the acid and conjugate base pair in the following equation: HF + H2O H3O+ + F- a.HF & H2Oc.HF & F- b.HF & H3Od.H2O & H3O+

5. At 298 K, the H+ ion concentration of an aqueous solution is 1 x 10-5 M. What is the pH of the solution?

6. The _____ of a weak acid is strong. a.conjugate acid b.conjugate base c.acid d.base

7. Calculate the hydrogen ion concentration of an aqueous solution, given the concentration of hydroxide ions is 1  10-5 M and the ion constant for water is 1  10-14.

8. A basic solution contains more _____ ions than hydrogen. a.oxygen b.nitrogen c.hydroxide d.sulfide

9. A _____ is produced when a base accepts a hydrogen ion from an acid. a.conjugate acid b.conjugate base c.acid d.base

10. What is the pH of blood, given the hydrogen ion concentration is 4.0  10-8 M?

11. In the Bronsted-Lowry model of acids and bases, a(n) _____ is a hydrogen donor and a(n) _____ is a hydrogen acceptor. a.acid, base b.base, acid c.conjugate acid, conjugate base d.conjugate base, conjugate acid

12. The hydrogen ion concentration of a solution is 3.2  10-7 M. What is the pH of the solution?

13. Calculate the hydroxide ion concentration of a solution with a pH of 9.2.

14. The H+ concentration of an aqueous solution is 1  10–2 M. What will be the concentration of OH– in the solution?

15. Calculate the hydrogen ion concentration of an aqueous solution, given the pOH of the solution is 3.2.

16. What is the pH of a solution that contains 45 grams of hydroiodic acid dissolved in 0.5 liters of water?

17. What is the pH of a solution that contains 3.24 grams of hydrobromic acid dissolved in 500 mL of water?

18. If a solution has a [H+] concentration of 4.2 x 10-10 M, is this an acidic or basic solution? Explain how you know.

19. What is the pH of a solution that contains 1.2 moles of nitric acid (HNO3) and 0.4 moles of hydrochloric acid dissolved in 1500 L of water?