How do I Monitor and Adjust the Buffering Capacity of an AEM?

1. How do I Monitor and Adjust the Buffering Capacity of an AEM? Mr. M. Gonzalez How do I Monitor and Adjust the Buffering Capacity of an AEM?

2. Do Now: Portfolios • Work on your research portfolios. • Get your AEMs. How do I Monitor and Adjust the Buffering Capacity of an AEM?

3. Closer Look at Portfolio Grading

4. Review: Portfolio Sections Course Forms – (Syllabi, lab map, etc.) Time Management – (Chronograms) STEPS – (Project STEPS and SUNY Check Points) Data – (Data you collect for projects on data tables) Research Project –(Report Guide + Research Paper drafts, lab reports) PCR – (Project Conference Reports) PRJAs – (Peer Reviewed Journal Articles) Protocols or Procedures – (Procedures and Materials) Worksheets – (Lab/field or research worksheets) Career – (Personal Statements, Cover Letter, CV) Letters – (Recommendation and Commendation) Certificates Other??? How do I Monitor and Adjust the Buffering Capacity of an AEM?

5. Objectives • I can review what the buffering capacity (BC) of a solution is. • I can adjust the BC of my AEM. • I can monitor the BC of my AEM. How do I Monitor and Adjust the Buffering Capacity of an AEM?

6. Review: pH • As you learned before, pH is important because it can change the speed of chemical reactions. • If an ecosystem does not have the right pH, what will happen? How do I Monitor and Adjust the Buffering Capacity of an AEM?

7. What is Buffering Capacity? How do I Monitor and Adjust the Buffering Capacity of an AEM?

8. Review: Buffering Capacity • The Buffering Capacityof a solution is the ability that solution has to resist changes in it’s pH. • In other words, if you add a base or acid to the solution the pH will change more slowly or not at all until a certain limit is hit. How do I Monitor and Adjust the Buffering Capacity of an AEM?

9. Buffering Capacity and pH • Is buffering capacity good or bad for an ecosystem? • Why? How do I Monitor and Adjust the Buffering Capacity of an AEM?

10. pH Facts

11. Where did you find a better buffering capacity Filtered water, HRE, or AEM? Comparing Buffering Capacity How do I Monitor and Adjust the Buffering Capacity of an AEM?

12. Where did you find a better buffering capacity Filtered water, HRE, or AEM? Comparing Buffering Capacity • Why do you think HRE had a better Buffering Capacity? How do I Monitor and Adjust the Buffering Capacity of an AEM?

13. Calcium Carbonate (CaCO3) elevates the buffering capacity of an ecosystem. What Exactly is Buffering Capacity? http://images.travelpod.com/tripwow/photos/ta-00ef-fc7e-3954/limestone-mountain-range-cluj-napoca-romania+1152_12984563398-tpfil02aw-22208.jpg How do I Monitor and Adjust the Buffering Capacity of an AEM?

14. CaCO3can be found on mountains as limestone. What Exactly is Buffering Capacity? http://images.travelpod.com/tripwow/photos/ta-00ef-fc7e-3954/limestone-mountain-range-cluj-napoca-romania+1152_12984563398-tpfil02aw-22208.jpg How do I Monitor and Adjust the Buffering Capacity of an AEM?

15. CaCO3 comes from ancient corals and other reef building organisms (i.e. oysters) that lived in the bottom of the sea a long time ago. Where does CaCO3 come from? http://www.en.mahidol.ac.th/control/envi_e/CoralReef_1.jpg How do I Monitor and Adjust the Buffering Capacity of an AEM?

16. After hundreds of millions of years, a lot of CaCO3 has accumulated on the ocean bottom. What Exactly Affects Buffering Capacity? http://img.geocaching.com/cache/5dfe9e8c-62b3-4f85-a7b6-9c6ab70f04fb.jpg How do I Monitor and Adjust the Buffering Capacity of an AEM?

17. Some sea bottoms were pushed up due to plate tectonics to form mountains (Orogenesis). Sea Bottom Becomes a Mountain http://ncealevel2sci.wikispaces.com/file/view/tuhua_orogeny.png/82273427/tuhua_orogeny.png How do I Monitor and Adjust the Buffering Capacity of an AEM?

18. Because of erosion CaCO3 drains down from those mountains that have limestone. What Exactly Affects Buffering Capacity? http://img.geocaching.com/cache/5dfe9e8c-62b3-4f85-a7b6-9c6ab70f04fb.jpg How do I Monitor and Adjust the Buffering Capacity of an AEM?

19. Coral rock has CaCO3 Baking soda has Sodium Bicarbonate: NaHCO3 Where will you get lime stone from? http://www.naturesrock.com/images/coralbaserock2.jpg How do I Monitor and Adjust the Buffering Capacity of an AEM?

20. NaHCO3will also elevate the: Buffering Capacity. Where will you get lime stone from? http://www.naturesrock.com/images/coralbaserock2.jpg How do I Monitor and Adjust the Buffering Capacity of an AEM?

21. Activity • You will write down the following procedures on to flow charts for tomorrow’s lab. How do I Monitor and Adjust the Buffering Capacity of an AEM?

22. Title: Adjusting Buffering Capacity • First, check the pH of your AEM with the Hanna Combo sensor. • Check the Buffering Capacity with the test strips. • Add ¼ tsp of baking soda to your AEM + a piece of coral rock • Mix with skewer, and • Check pH How do I Monitor and Adjust the Buffering Capacity of an AEM?

23. Title: Adjusting Buffering Capacity • If your pH is below 7, add more baking soda until it is 7 • If your pH is below 7, add an acid solution until it comes down to 7. • Once you’ve finished adjusting the pH check Buffering Capacity again with test strips and this time put your data into your data tables! • Clean up How do I Monitor and Adjust the Buffering Capacity of an AEM?

24. Clean Up • Recap the probe FIRMLY by lining up the lettering on the cap and the face of the meter. • Wait for clean-up instructions. • Clean up your area, dump your rinse water out, dispose of gloves, and return materials. • Begin work on your bar graph and analysis questions. How do I Monitor and Adjust the Buffering Capacity of an AEM?

25. HW • Work on organizing your research portfolios. How do I Monitor and Adjust the Buffering Capacity of an AEM?