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A 25.0-mL sample of a 0.350 M solution of aqueous trimelhylamine is titrated with a 0.438...

A 25.0-mL sample of a 0.350 M solution of aqueous trimelhylamine is titrated with a 0.438 M solution of HCI. Calculate the pH of the solution after 10.0, 20.0, and 30.0 mL of acid have been added; pK_b of (CH_3)_3N = 4.19 at 25 degree C. pH after 10.0 mL of acid have been added: pH after 20.0 mL of acid have been added: pH after 30.0 mL of acid have been added:

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