- R.S. Tjeerdema ETX 102A...

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R.S. Tjeerdema ETX 102A "ENVIRONMENTAL FATE OF TOXICANTS" Final Exam Study Sheet The final examination (6:00 to 8:00 pm, Wednesday, Mar. 17) will consist of 13 short answer/essay questions – you will have a choice of which 12 to answer). It will emphasize the materials (lecture notes and handouts) presented in class since the midterm exam; however, it will be comprehensive, and thus may contain several questions representing material covered by the midterm exam. Reading materials are secondary in importance with a focus on the topics in the readings that were also covered in class (i.e. topics presented in the text that were not also touched upon in class will not be covered on the exam). Chemical structures do NOT need to be memorized, but you should know chemical or mathematical equations presented in lecture. Please remember the review sessions are Wednesday, March 10 (during the normal discussion period) and Monday, March 15, 1-2 pm (after the last lecture). We will be happy to answer any questions on the material to be covered on the final. PLEASE do not hesitate to contact us if you have any questions – we are here to help! GOOD LUCK and have a nice quarter break!!! For the final examination, please know the information outlined below (in addition to that covered by the midterm and first study sheet). Essentially any topic covered in lecture is fair game. The following list is not meant to be all-inclusive, but give you an idea of what was covered in the lectures. 1. Abiotic Reactions: Oxidation and Reduction Oxidation: Please know the definition of oxidation, especially for organic compounds. Also know the various types of oxidants found in nature (atmosphere and hydrosphere), including hydroxyl radicals, triplet oxygen, singlet oxygen, atomic oxygen, and ozone. Also know that hydroxyl radical is the most important environmental oxidant. How does it oxidize organic compounds (hint: think hydrogen abstraction)? Please know how oxidants are generated (in water and air). Reduction: Please know the definition of reduction, especially for organic compounds. Also, please be familiar with standard redox potentials, and how they can predict the equilibrium constant for an oxidation-reduction reaction (using the modified Nernst equation). Please understand the concept of electron activity in the environment (as represented by p ε ), how it might be calculated via both the equation analogous to pH and the modified Nernst equation). Also, know where in the environment reductions tend to occur in comparison to oxidations. Please be familiar with hydrated
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This note was uploaded on 01/10/2011 for the course ETX 102A taught by Professor Ronaldtjeerdema during the Winter '10 term at UC Davis.

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