Question- A 20.0 mL sample of 0.200 M HBr solution is titrated with 0.200 M NaOH 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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