sw32 - Study Guide Exam III Soils in the Environment 1....

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Study Guide Exam III Soils in the Environment 1. Know the range of O.M. percentage in a typical, well drained soil. 2. Know the 3 principal elemental constituents of organic matter. 3. Know the compounds in O.M. that decompose most rapidly and most slowly. 4. Know the definition of an acid. 5. Understand the differences between strong and weak acids. 6. Know what low and high pH indicate relative to the amount of H+ in solution. 7. Know the conditions relative to pH that control the dissociation of weak acids. 8. Know the 2 main functional groups on organic matter. What kinds of acids are they and how do they generate negative charge on organic colloids. 9. Know the conditions relative to pH that increase or decrease charge development on organic colloids. 10. Know the range in CEC for organic colloids. 11. Know the essential differences in how charge is developed on mineral vs. organic colloids. 12. Know the definition of an acid. 13. Know why rainfall is naturally acidic. 14. Know the two cations considered acidic in soils. 15. Understand how aluminum is acidic.
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This note was uploaded on 02/04/2011 for the course SWS 3022 taught by Professor Bonczek during the Spring '11 term at University of Florida.

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sw32 - Study Guide Exam III Soils in the Environment 1....

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