Acids, Bases, & Salts

Chapter 24, Sec 3

Decide whether each item listed below refers to an acid, a base, or both. Write your answer in the space provided.

A- acid B- base AB-acid & base

______1. Sour taste

______2. Bitter taste

______3. Produces hydrogen ions in solution

______4. Is often corrosive

______5. Is slippery

______6. Can cause severe burns & tissue damage

______7. Exists as a crystalline solid in undissolved state

______8. Produces hydroxide ions in solution

______9. Reacts with a predictable indicator

______10. Soaps are an example

______11. May be used to make fertilizer

______12. Gastric juice in stomach

______13. Produces hydronium ions

______14. A solution that contains more H3O ions than OH ions

______15. HCl is an example

______16. Ammonia is a common example

______17. Tomatoes are an example

18. Identify FOUR properties that acids & bases have in common.

19. Identify THREE facts about acids that are not true of bases.

20. Identify THREE facts about bases that are not true of acids.

Strength of Acids & Bases

Chapter 24, Sec 4

Place each item from the list on the pH scale in its proper location.

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

ocean water 8.5 shampoo 5.8 eggs 7.8

tomatoes 4.0 bananas 5.2 soap 10.0

ammonia 11.5 blood 7.2 vinegar 3.0

stomach acid 1.0 milk of magnesia 10.5 lemons 2.5

Complete the table below by writing the name of each of the above substances under the proper heading. Place substances lower than 3.0 in the strong acid column, & substances higher that 10.0 in the strong bases column.

Strong acid / Weak acid / Weak base / Strong base

5. Is pure water an acid, base, or neutral substance?______

6. Is the pH of a strong acid higher or lower than the pH of a weak acid of the same concentration?______

7. Is the pH of a strong base higher or lower that the pH of a weak base of the same concentration?______

8. On the pH scale, what are the values of acids & what are the values of bases? ______