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Unformatted text preview: How is pK b related to pK a ? c. Write the equilibrium reaction associated with the pK b of this problem and calculate pK b for the reaction. 6. What is the percent ionization of a 5.0 M H 3 PO 4 solution? Use Table 16.3 for K a values for H 3 PO 4 . 7. Think about acid and base structure to answer the following questions. a. Select the stronger acid in each pair and briefly give a chemical reason why it is stronger. (1) HNO 2 HNO 3 (2) CH 2 BrCO 2 H CH 2 ClCO 2 H b. Select the stronger base in each pair and briefly give a chemical reason why it is stronger. (1) CH 3 CH 2 O-CH 3 CH 2 NH-(2) CH 3 OCH 2 NH 2 CH 3 CH 2 NH 2 8. Draw the reaction of the following Lewis acid/base reactions, showing the electrons being accepted/donated. a. OH + H-Br -------> b. OH + H 3 C-Br ------->...
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