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The Ka of HC3H3O2  is 5.6 x 10-5 and the Kb of (CH3)3N is 6.4 x 10-5...

The Ka of HC3H3O2  is 5.6 x 10-5 and the Kb of (CH3)3N is 6.4 x 10-5

With the titration of 20.0mL of 0.40M HC3H3O2, what is the pH of the solution after adding a total of 40.0mL of 0.20M NaOH to the acid?

A) 8.69

B) 8.93

C)7.00

D) 12.90

E) None of these

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