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acid base review answers

1. 1 6. 1  11. 3 
 2. 3 7. 1 12. 2
 3. 3 8. 1 13. 3
 4. 1 9. 4 14. 3
 5. 1 10. 2 15. 1

 16. a. all but the second.  Acids bases and salts are electrolytes b. CH3COOH, acetic acid

c. large amounts of hydrogen ions  d. Ba(OH)2, it's a base e. Ba(OH)2, it produces the most ions in solution

17. 35.2 - 23.2 = 12.0 mL

18. phenolpthalein, it changes color near the neutralization point

19.  MaVa = MbVb  trial 1      1.2(10.0) = 12.2X        trial 2     1.2(10.0) = 11.0X    trial 3   1.2(10.0) = 12.0X

trial 4  1.2(10.0) = 12.5X               add up molarities and divide by 4 comes to 0.98 ish

20.  Using multiple trials reduces error

21. colorless to pink

22. 0.30(42.2) = 60.0X

23. two   0.30 has two sig figs

24. hydrogen ions, hydronium ions

25. 5, it moves 3 ph levels down

26. yellow

27. 1.4(15.40) = 22.10X

28. (0.95 - 0.83)/0.83    all times 100

29.  7, up two places

30. barium hydroxide

 

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