1. ACIDS AND BASES

2. Which of the following would you drink?
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3. Acid
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4. Acid Water / neutral Base
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5. Acid Water / neutral Base
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6. Acid Water / Neutral Base
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7. Acid Water / neutral Base
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8. Acid Water / Neutral Base
Sea water
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9. Acid Water / Neutral Base
Sea water
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10. The average pH of soft drinks, e. g. Coke/ Pepsi is a pH 3. 4
The average pH of soft drinks, e.g. Coke/ Pepsi is a pH 3.4. This acidity is strong enough to dissolve teeth and bones!
Copyright © 2010 Ryan P. Murphy

11. The average pH of soft drinks, e. g. Coke/ Pepsi is a pH 3. 4
The average pH of soft drinks, e.g. Coke/ Pepsi is a pH 3.4. This acidity is strong enough to dissolve teeth and bones!
Copyright © 2010 Ryan P. Murphy

14. Video Link! (Optional) Mtn. Dew Mouth.
How Mtn. Dew and other sodas can cause serious tooth decay if misused.
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15. Water in a pure state has a neutral pH.
Pure water is neither acidic or basic.
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16. Water in a pure state has a neutral pH.
Pure water is neither acidic or basic.
Neutral:
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17. Water in a pure state has a neutral pH.
Pure water is neither acidic or basic.
Neutral: In the middle. Not favoring one side or the other.
Copyright © 2010 Ryan P. Murphy

18. Water in a pure state has a neutral pH.
Pure water is neither acidic or basic.
Copyright © 2010 Ryan P. Murphy

19. The pH scale goes 1-14 7 is neutral 1 is Acidic 14 is basic
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20. The pH scale goes 1-14 7 is neutral 1 is Acidic 14 is basic
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21. The pH scale goes 1-14 7 is neutral 1 is Acidic 14 is basic
Copyright © 2010 Ryan P. Murphy

22. The pH scale goes 1-14 7 is neutral 1 is Acidic 14 is basic
Copyright © 2010 Ryan P. Murphy

23. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

24. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

25. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

26. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

27. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

28. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

29. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

30. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

31. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

32. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

33. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

34. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

35. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

36. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

37. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

38. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

39. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

40. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

41. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

42. Please decided whether the box is placed in an area of the pH scale that is…
Acidic -Neutral -Basic

43. What is the pH of the two pieces of Litmus Paper below?

44. What is the pH of the two pieces of Litmus Paper below?

45. What is the pH of the two pieces of Litmus Paper below?

46. What is the pH of the two pieces of Litmus Paper below
What is the pH of the two pieces of Litmus Paper below? Answer: pH of 10.

47. What is the pH of the two pieces of Litmus Paper below
What is the pH of the two pieces of Litmus Paper below? Answer: pH of 10.
Is that an acid or base?

48. What is the pH of the two pieces of Litmus Paper below
What is the pH of the two pieces of Litmus Paper below? Answer: pH of 10.
Is that an acid or base?

49. What is the pH of the two pieces of Litmus Paper below?

50. What is the pH of the two pieces of Litmus Paper below?

51. What is the pH of the two pieces of Litmus Paper below?

52. What is the pH of the two pieces of Litmus Paper below? Answer: pH of 3

53. What is the pH of the two pieces of Litmus Paper below? Answer: pH of 3
Is that an Acid or a Base?

54. What is the pH of the two pieces of Litmus Paper below? Answer: pH of 3
Is that an Acid or a Base?

55. What color best represents distilled water?

56. What color best represents distilled water?

57. What color best represents distilled water?
Answer: Olive / Green

58. What color best represents distilled water?
Answer: Olive / Green
Is it an acid or a base?

59. What color best represents distilled water?
Answer: Olive / Green
Is it an acid or a base?
Trick, It’s Neutral

60. pH - An expression for the effective concentration of hydrogen ions in a solution.
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61. The strength of an acid is based on the concentration of H+ (hydrogen) ions in the solution.
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62. This is what can happen if your sensitive skin comes in contact with dangerous acid.

63. This is what can happen if your sensitive skin comes in contact with dangerous acid.

64. What if I am splashed with something that is extremely basic?

65. The same result! Both ends of the pH scale are extremely dangerous and need to be respected.

66. Acid burns are real and pose a very serious health risk
Acid burns are real and pose a very serious health risk. Know about them in your house and workplace.
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67. Acid burns are real and pose a very serious health risk
Acid burns are real and pose a very serious health risk. Know about them in your house and workplace.
Always wear the proper safety gear when working with dangerous materials.
Copyright © 2010 Ryan P. Murphy

68. Picture of laborers collecting sulfur in a dangerous sulfur mine.
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69. Picture of laborers collecting sulfur in a dangerous sulfur mine.
Life expectancy of these workers is very young as the sulfuric acid in the air they breath burns their lungs.
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70. Picture of an acid lake on top of a volcano.

71. The strength of a base is determined by the concentration of Hydroxide ions (OH-)
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72. Copyright © 2010 Ryan P. Murphy

73. Test two mystery substances to see which is a dangerous acid, and which is a dangerous base.
Sodium
Hydroxide
(Basic)
Hydrochloric
Acid
(Acidic)

74. Hydrogen Explosive Bubbles Video Link
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75. Water has a neutral pH, and therefore dissolves solutions or compounds of any pH.
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76. Acid Rain is caused by Nitrogen and Sulfur dioxides
Acid Rain is caused by Nitrogen and Sulfur dioxides. aka – Air pollution.
SO2
NOx
NO3
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77. Video Link! Acid Rain

78. Copyright © 2010 Ryan P. Murphy

79. Map showing greatest acid rain concentrations in the U.S.

80. Map showing greatest acid rain concentrations in the U.S.

81. Map showing greatest acid rain concentrations in the U.S.

82. Map showing greatest acid rain concentrations in the U.S.

83. Map showing greatest acid rain concentrations in the U.S.

84. Map showing greatest acid rain concentrations in the U.S.

85. Map showing greatest acid rain concentrations in the U.S.

86. Acid rain: Any form of precipitation that is unusually acidic
Acid rain: Any form of precipitation that is unusually acidic. Usually around a pH of 5
Copyright © 2010 Ryan P. Murphy

87. Question: If you swim in a pond that is affected by acid rain will you look like this?

88. Answer: No. The change in pH (Acidity) will be small
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.

89. Answer: No. The change in pH (Acidity) will be small
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.

90. Answer: No. The change in pH (Acidity) will be small
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.

91. Answer: No. The change in pH (Acidity) will be small
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.

92. Answer: No. The change in pH (Acidity) will be small
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.

93. Answer: No. The change in pH (Acidity) will be small
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.

94. Answer: No. The change in pH (Acidity) will be small
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.

95. Answer: No. The change in pH (Acidity) will be small
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.

96. Answer: No. The change in pH (Acidity) will be small
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.

97. Answer: No. The change in pH (Acidity) will be small
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.

98. Answer: No. The change in pH (Acidity) will be small
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.

99. The result, a lake that looks beautiful but is biologically dead.
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.
The result, a lake that looks
beautiful but is biologically dead.

100. The result, a lake that looks beautiful but is biologically dead.
Answer: No! The change in pH (Acidity) will be small. This will have a large impact on the micro-organisms which then moves up the food chain.
The result, a lake that looks
beautiful but is biologically dead.
Learn more about acid rain at…

101. Cleopatra’s Needle in Egypt. (Dry)
Misnamed: They are ancient Egyptian obelisks and not connected to Cleopatra.
Three were removed from Egypt and brought to London, Paris and New York.
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102. Central Park Present

103. Central Park Present

104. Central Park Present

105. Brought to New York City Water + Chemical Pollution =
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106. Brought to New York City Water + Chemical Pollution =
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107. Activity / Video – View Video and Conduct Activity
Directions are on video.
Draw a before and after along with a quick procedure.
Materials, glass, chalk, vinegar, paper clip.
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108. ACID BASE Acids and Bases optional PowerPoint in folder.
Nice reading can be found here.
ACID
BASE H+ H+
OH- H+
OH- H+ H+
OH- H+
OH- H+
OH- H+
Low pH, Lots of H+
Lots of OH-, High pH