Quiz 1 Key 2007

Quiz 1 Key 2007 - Name Student number BCHM 2024 Quiz 1...

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Name ____________________________ Student number _____________________ BCHM 2024, Quiz 1 February 7, 2007 1. Hydrophobic interactions are __________ covalent bonds. A. Weaker than B. Stronger than C. The same strength as 2. A buffer has a pK a 0f 6.0. At pH 7.0 the ratio of conjugate base to acid ([A - ]/[HA]) in this buffer would be: A. 0.01 D. 10 B. 0.1 E. 100 C. 1 F. 1,000 3. A chemical reaction that releases free energy (has a negative G) is: A. Endergonic C. Isothermal B. Exergonic D. At equilibrium 4. pH is defined as: A. The logarithm of the hydroxide ion concentration B. The negative logarithm of the hydroxide ion concentration C. The negative logarithm of the hydrogen ion concentration D. The logarithm of the hydrogen ion concentration E. The negative logarithm of the K a (dissociation constant) 5. Which of the choices for question #4 is the definition of the pK a of an acid? E 6. Hydrogen covalently bound to ______ can form hydrogen bonds. A. Carbon and hydrogen
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This note was uploaded on 05/06/2008 for the course BCHM 2024 taught by Professor Keenan during the Spring '08 term at Virginia Tech.

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Quiz 1 Key 2007 - Name Student number BCHM 2024 Quiz 1...

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