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CH310M_Iverson_Hw5

# CH310M_Iverson_Hw5 - 1Homework Problem Set 5 Iverson...

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1Homework Problem Set 5 Iverson CH310M/318M Due Wednesday, Oct. 7 1 Chemistry 310M Dr. Brent Iverson 5th Homework October 2, 2009 NAME (Print): _____________________________ SIGNATURE: _____________________________ Please print the first three letters of your last name in the three boxes

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2Homework Problem Set 5 Iverson CH310M/318M Due Wednesday, Oct. 7 2 Score: _________
3Homework Problem Set 5 Iverson CH310M/318M Due Wednesday, Oct. 7 3 OH O O NH 2 O H-I Cl C C H H H H C C H H-Cl OH OH C C H H H I O O NH C C H H 1. (2 pts each) For the following acid base reactions, circle the side of the equation that predominates at equilibrium. + + + + + + + + resonance stabilized anion oxygen is more electronegative than nitrogen Iodine is a larger anion than chloride sp hybridized atom is better at stabilizing a negative charge 2. (4 pts each) For the following two equations, the pKa values are listed underneath each acid. Circle the side of the equation that predominates at equilibrium, and in the space provided estimate the equilibrium constant for the reaction in the direction written. pK a = 44 pK a = 25 The equilibrium constant for this process is K eq = 10 -19 weaker acid OH O O O The equilibrium constant for this process is K eq = 10 5.88 H 3 C NH 2 + H 3 C NH 3 + pK a = 4.76 pK a = 10.64 weaker acid

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4Homework Problem Set 5 Iverson CH310M/318M Due Wednesday, Oct. 7
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CH310M_Iverson_Hw5 - 1Homework Problem Set 5 Iverson...

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