bioex_lect25

bioex_lect25 - MIT OpenCourseWare http:/ocw.mit.edu 5.111...

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MIT OpenCourseWare http://ocw.mit.edu 5.111 Principles of Chemical Science Fall 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms .
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Oxidation/Reduction Reactions See page 1 of lecture 25 notes for an introduction to oxidation/reduction and page 2 of lecture 26 notes for a discussion of a standard reduction potential (E°). Meaning of standard reduction potential ( E °): A large positive E ° means the element or compound is easy to reduce. ex. F 2 (g) + 2e - 2F - E ° = +2.87 volts (easy to add electrons to F 2 ) F 2 is a strong oxidation agent (easy to reduce) A large negative E ° means the element or compound is hard to reduce ex. Li +1 + e - Li (s) E °=-3.045 volts (hard to add electrons to Li +1 ) Example from the TA-led recitation associated with Lectures 25 and 26: Oxidative Metabolism of Drugs in the Body Drugs are metabolized by a class of proteins in the liver called cytochrome P450 or Cyp (pronounced “sip”) enzymes. Cyp enzymes function by oxidizing small molecules,
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This note was uploaded on 03/02/2012 for the course CHEM 5111 taught by Professor Vogel during the Fall '08 term at MIT.

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bioex_lect25 - MIT OpenCourseWare http:/ocw.mit.edu 5.111...

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