Transcription of CHAPTER 14 Acids and Bases - Tamkang University
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CHAPTER 14 Acids and Bases - Tamkang University
CHAPTER 14 Acids and Bases 1. For the equilibrium that exists in an aqueous solution of nitrous acid (HNO2, a weak acid ), the equilibrium constant expression is: [H+][NO2 ]. a) K= [HNO2]. [H+][N][O]2. b) K= [HNO2]. c) K = [H+][NO2 ]. [H+]2[NO2 ]. d) K = [HNO ]. 2. e) none of these [H+][NO2 ]. ANS: a) K = [HNO ] PAGE: 2. 2. Which of the following is a conjugate acid / base pair? a) HCl/OCl- b) H2SO4/SO42- c) NH4+/NH3. d) H3O+/OH- e) none of these ANS: c) NH4+/NH3 PAGE: 3. The equilibrium constant for the reaction A + H+ HA. is called: a) Ka b) Kb 1. c) Ka Kw d) Kb e) KwKa 1. ANS: c) Ka PAGE: 321 Houghton Mifflin Company. All rights reserved. CHAPTER 14 Acids and Bases 4. For the stepwise dissociation of aqueous H3PO4, which of the following is not a conjugate acid base pair?
CHAPTER 14 Acids and Bases 321 © Houghton Mifflin Company.All rights reserved. 1. For the equilibrium that exists in an aqueous solution of nitrous acid (HNO2, a ...
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