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2. Acids and Bases DefinitionsIndicatorspHStrong or weak? Reactions 200 400 600 800 1000 Bonus Question: 5000 pts

3. Definitions: 200 Question: What is the Arrhenius definition of an acid? Answer A substance that contributes Hydrogen ions to water.

4. Definitions : 400 Question: What is the Arrhenius definition of a base? Answer A substance that contributes Hydroxide ions to water.

5. Definitions : 600 Question: What is the definition of a Bronsted-Lowry base? Answer A substance that accepts a proton.

6. Definitions : 800 Question: What is the definition of a Bronsted-Lowry acid? Answer A substance that donates a proton.

7. Indicators: 1000 Question: What is an amphoteric substance? Answer A substance that has properties of an acid and properties of a base. Examples: water, hydrogen carbonate ion

8. Indicators: 200 Question: What type of substance turns red litmus paper blue? Answer A base.

9. Indicators : 400 Question: Based on your reading, what is the most accurate method of obtaining a pH value? Answer pH meter

10. Indicators : 600 Question: What is the color of universal indicator when placed in pure water? Answer green

11. Indicators : 800 Question: Give two reasons why pH paper would not be useful in measuring the pH of blood. Answer The color of the blood would obscure the color change on the paper The paper is precise enough to measure blood pH.

12. Indicators : 1000 Question: What is the color of universal indicator when ammonia gas is bubbled through? Answer Dark blue

13. pH: 200 Question: A neutral solution has a pH of what value? Answer 7

14. pH: 400 Question: Where do acids fall on the pH scale? Answer Below 7

15. pH: 600 Question: Each integer on the pH scale represents a _____ fold difference in the concentration of hydrogen ions. Answer 10

16. pH: 800 Question: The value of K w, the self-ionization constant of pure water is equal to [H 3 O + ][OH - ]. Its numerical value is equal to Answer 1 x 10 -14

17. pH: 1000 Question: If the [OH-] is 1 x 10 -8, the concentration of hydronium ions in the same solution is Answer 1 x 10 -6

18. Strong or Weak: 200 Question: What distinguishes a strong acid from a weak acid? Answer The extent to which dissociation of the acid occurs.

19. Question: Would HNO 3 be characterized as a strong or weak acid? Answer Strong! Strong or Weak: 400

20. Strong or weak: 600 Question: When looking at a chemical equation, how is a strong acid distinguished from a weak acid. Answer Double vs. single arrows (→ vs. ↔)

21. Strong or weak: 800 Question: Many strong bases are made from the combination of what types of elements with hydroxide? Answer Alkali and alkaline earth metals.

22. Strong or weak: 1000 Question: Is Na 3 PO 4 considered an acid or a base? Answer Strong base

23. Reactions: 200 Question: What kind of reaction takes place when a base and acid combine to produce water and salt? Answer neutralization

24. Reactions: 400 Question: Name the acid: H 2 SO 4 Answer Sulfuric acid

25. Reactions: 600 Question: Predict the conjugate acid formed from the following reaction: HCl + H 2 O  Answer H 3 O +

26. Reactions: 800 Question: Predict the conjugate base that forms as a result of the following reaction: NH 4 + + H 2 O ↔ Answer NH 3

27. Reactions: 1000 Question: A buffer solution can be made by varying the concentrations of a weak acid and its______ Answer Conjugate base

28. Bonus Question: 5000 pts. Question: Give the pH of pancreatic juice. Answer … 7.9