A chemist titrates 140.0 mL of a 0.4198M dimethylamine ((CH3)2NH) pK, of dimethylamine is 3.27. (CH₂) NH) solution with 0.3707M HBr solution at 25 °C. Calculate the pH at equivalence. The Round your answer to 2 decimal places. Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of HBr solution added.

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
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Chapter15: Acid–base Equilibria
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A chemist titrates 140.0 mL of a 0.4198M dimethylamine ((CH3)2NH) solution with 0.3707M HBr solution at 25 °C. Calculate the pH at equivalence. The
pK₂ of dimethylamine is 3.27.
b
Round your answer to 2 decimal places.
Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of HBr solution added.
Transcribed Image Text:A chemist titrates 140.0 mL of a 0.4198M dimethylamine ((CH3)2NH) solution with 0.3707M HBr solution at 25 °C. Calculate the pH at equivalence. The pK₂ of dimethylamine is 3.27. b Round your answer to 2 decimal places. Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of HBr solution added.
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