Question: A 20.0-mL sample of 0.200 M HBr solution is titrated with 0.200MNaOH solution. Calculate the pH of the solution after the following volumes of base

A 20.0-mL sample of 0.200 M HBr solution is titrated with 0.200MNaOH solution. Calculate the pH of the solution after the following volumes of base have been added:
(a) 15.0 mL,
(b) 19.9 mL,
(c) 20.0 mL,
(d) 20.1 mL,
(e) 35.0 mL.

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