Aqueous acids may be placed in order of acid strength according to their pka values. In the following, the stronger acids are nearer the top.  HClO4(aq)  ➡   H+(aq)  +  ClO-4(aq)  HCl(aq)  ➡   H+(aq)  +  Cl-aq)  CH3CO2H(aq) ➡  CH3CO2-(aq)  +  H+(aq)  H2O(l)  ➡  H+(aq)  +  OH-(aq).  Give one piece of experimental evidence to justify the above order. Define ka and pka

Chemistry
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Author:Steven S. Zumdahl
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Chapter14: Acids And Bases
Section: Chapter Questions
Problem 2RQ: Define or illustrate the meaning of the following terms: a. Ka reaction b. Ka equilibrium constant...
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Aqueous acids may be placed in order of acid strength according to their pka values. In the following, the stronger acids are nearer the top. 

HClO4(aq)     H+(aq)  +  ClO-4(aq) 

HCl(aq)  ➡   H+(aq)  +  Cl-aq) 

CH3CO2H(aq)  CH3CO2-(aq)  +  H+(aq) 

H2O(l)  ➡  H+(aq)  +  OH-(aq). 

  • Give one piece of experimental evidence to justify the above order.
  • Define ka and pka 

 

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