Acid Quiz

 1. List the steps followed to calibrate the pH meter.

 2. Explain why buffers were used in this demonstration.

 3. Explain the importance of hydronium ions in relation to acids.

 4. What determines the strength of an acid?

 5. Compare weak versus strong acids.

 6. What is the functional group for organic acids?

 7. List uses of commons acids:

8. Explain the nature of "aqua fortis" and "aqua regia":

9. List a common name for hydrochloric acid.

 10. Explain the chemical nature of bases.

 11. What is a neutralization reaction?

 12. List several common household bases:

 13. Explain the purpose of the pH scale.

 14. Discuss the pH of the human body (especially blood).

15. What is the chemical makeup of a salt?

 16. pH meters work due to a change in the hydronium ion concentration. A reference electrode and a special purpose electrode measure voltages. How is this change in voltage related to a pH scale?

 17. Pure water ionizes to a small degree forming H₃0⁺ and OH^1-. The concentration of these ions is lE-7 mole per liter of pure water. The concentrations are equal so the water is neither acidic or basic. What about human sweat?

 18. A solution which can accept moderate amounts of an acid or base without a significant change in pH:

 19. The separation of ions in solution:

 20. The reaction of a salt and water to form an acid and a base (usually weak acid/base pair):

 21. This material uses color to indicate the pH of a solution:

 22. The technique for measuring the relative strength of a solution:

 23. The indicator used in the pH demonstration:

 24. The point in a titration where equal amounts of reactants are present (neutralization was complete):

 25. The molarity of the stock solutions used in the pH demonstration:

 26. The instrument used during the titration to add base to the flask:

 27. What was the name of the solutions used to calibrate the pH meter:

 28. When the negative ion of an acid combines with the positive ion of a base, what is formed:

 29. The chemical name of the base used in the demonstration:

 30. Substances which ionize in water solution to produce hydrogen ions:

 31. Substances which ionize in water solution to produce hydroxide ions:

 32. The products of the titration reaction were: