lecture_4 - BCHS 3304: General Biochemistry I, Section...

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BCHS 3304: General Biochemistry I, Section 07553 Spring 2003 1:00-2:30 PM Mon./Wed. AH 101 http://www.uh.edu/sibs/faculty/glegge Instructor: Glen B. Legge, Ph.D., Cambridge UK Phone: 713-743-8380 Fax: 713-743-2636 E-mail: glegge@uh.edu Office hours: Mon. and Wed. (2:30-4:00 PM) or by appointment 353 SR2 (Science and Research Building 2) 1
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SIBS program Monday Chat room on Webct: 8:00-10:00 PM Tuesday Workshop: 5:00-7:00 PM in 101 AH Wednesday Office Hours: 3:00-4:45 PM in 114 S Wednesday Workshop: 5:00-7:00 PM in 116 SR1 Students must activate their webct accounts. SIBS will not print out exam reviews Jerry Johnson (BCHS 3304 workshops) contact email: MYSTIK1775@aol.com
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Acids and Bases January 27 2003
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Ionization of water Although neutral water has a tendency to ionize H 2 O <-> H + + OH - The free proton is associated with a water molecule to form the hydronium ion H 3 O + High ionic mobility due to proton jumping
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Proton Jumping Large proton and hydroxide mobility • H 3 O+ : 362.4 x 10 -5 cm 2 •V -1 •s -1 Na + : 51.9 x 10 -5 cm 2 •V -1 •s -1 Hydronium ion migration; hops by switching partners at 10 12 per second
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Equilibrium expression Described by:
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K
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Acids and bases For pure water (neutral)
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Acids and Bases Lowery definition: Acid is a substance that can donate a proton . Base is a substance that can accept a proton.
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This note was uploaded on 02/22/2011 for the course BCHS 3304 taught by Professor Johnson during the Spring '08 term at University of Houston.

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lecture_4 - BCHS 3304: General Biochemistry I, Section...

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