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For the titration of 25.0 mL of 0.20 M hydrofluoric acid with 0.20 M sodium hydroxide, determine the volume of base added when pH is a) 2.85, b) 3.15, and c) 11.89.

The answers are: a) 8.3 mL b)12.5 mL and c) 27.0 mL.

I want to know how to solve the problems, especially part C.

Thanks

1 AnswerChemistry9 years ago
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