smpmc - 3.5 4.0 5. The electronegativity of C is: 2.5 3.0...

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Each of the following multiple choice questions is worth 3 points. There is no penalty for incorrect answers. 1. The activation energy difference necessary to produce a rate difference of 100:1 is: 4.1 kcal/mole 13.5 kcal/mole 1.35 kcal/mole 2.7 kcal/mole 2. The pK a of H 2 O is: 7 60 14 15.6 3. The electronegativity of O is: 2.5 3.0 3.5 4.0 4. The electronegativity of N is: 2.5 3.0
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Unformatted text preview: 3.5 4.0 5. The electronegativity of C is: 2.5 3.0 3.5 4.0 6. An acid with a p K a of 10 relative to one with a p K a 20 produces at equilibrium: twice as much hydronium ion half as much hydronium ion 10 10 as much hydronium ion 10 5 as much hydronium ion 7.For an equilibrium where DH is 1.35 kcal/mol, the ratio of starting material to product is: 1:10 1000:1 10:1 1:1000...
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This note was uploaded on 12/26/2009 for the course CHEM 140A taught by Professor Whiteshell during the Fall '04 term at UCSD.

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