1. Before the Bell Rings Grab three papers from the side table.
One person in each elbow group log onto the computer at your table.

2. ETD 62 2019 Explain how an acid can be both strong and dilute.
Give 4 Reasons Why is Acid Rain Bad?

3. Write On ETD 62 Ans.
Explain how an acid can be both strong and dilute.

4. ANS ETD 62 Ans
A. Explain how an acid can be both strong and dilute.

5. B. Why is acid rain bad? 1. Lakes + Rivers  Too Acidic for Fish
Notes
1. Lakes + Rivers  Too Acidic for Fish
2. Leaches Minerals from Soil
3. Damages Plant Leaves = No Photosynthesis
4. Erodes Limestone
+ Marble

8. Learning Targets
I can explain how to reduce the amount of acid I produce in the environment.
I can explain how to determine the strength of an acid or base.

9. Tests Come finish/take missing tests.
Corrections for all tests can be done.
June 14th- Last day for corrections or late work to be done

10. Acid Rain Recap
How were your graphs different when the CO2 vs. SO2 was added.
Explain this difference.

12. Sources of SO2, NO2, and CO2 Burning coal  SO2
Notes
Burning coal  SO2
Combustion cars/trucks/freight  NO2
Burning Fossil Fuels + Respiration  CO2
Plants fix CO2 during photosynthesis

13. Sulfates

14. Nitrates

15. pH of Rainwater

20. China’s Exhaust is Coming

21. Minimizing Effects of Acid Rain
Buffers  Neutralize and Stabilize pH
CaCO3 = Limestone
Naturally Found in soil/bedrock, many farmers add “lye”
Scrubbing of smoke stacks removes SO2

22. How can you help reduce acid rain?

23. If you don’t….

24. pHet: pH Scale Simulator:

25. Get Out Your Notes

26. Logzzzzzzzzzzzzzzzz……

27. 6 Formulas to Memorize: Write These Down!
Notes
6 Formulas to Memorize: Write These Down!
Kw = 1 x = [H+]●[OH-]
pH = -log [H+]
[H+] = 10-pH
pOH = -log [OH-]
[OH-] = 10-pOH
pH + pOH = 14.0

28. pH Scale Kw = 1 x 10-14 = [H+]●[OH-] pH = -log [H+] [H+] = 10-pH
Notes  
Acids Neutral Base 
Kw = 1 x = [H+]●[OH-]
pH = -log [H+]
[H+] = 10-pH
If You Need “Pee”H  “Pee” on a Log

29. pOH Scale pH + pOH = 14.0 pOH = -log [OH-] [OH-] = 10-pOH 0 7 14
Notes  
Base Neutral Acids 
pOH = -log [OH-]
[OH-] = 10-pOH
pH + pOH = 14.0

30. 6 Formulas to Memorize: Write These Down!
Kw = 1 x = [H+]●[OH-]
pH = -log [H+]
[H+] = 10-pH
pOH = -log [OH-]
[OH-] = 10-pOH
pH + pOH = 14.0

31. Now you try …
Notes
1. Calculate the pH of a solution where [OH-] = 1.0 x 10-6 M. 2. The pH of human blood is 7.4, what is the [OH-]?

32. Ans 1Now you try …
1. Calculate the pH of a solution where [OH-] = 1.0 x 10-6 M.

33. Ans 2 Now you try …
 2. The pH of human blood is 7.4, what is the [OH-]?

34. Something to Remember

35. Learning Targets
I can explain how to reduce the amount of acid I produce in the environment.
I can explain how to determine the strength of an acid or base.

36. Home work
pH Phet
Due next class
pH Calculations WS