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A 40.0 mL sample of 0.125 M HCL(aq) is titrated with a 0.250 M solution of NaOH. Calculate: A) mL of NaOH needed to reach the equivalence point B) pH of the solution before the addition of any NaOH C) pH of the solution after the addition of 15.0 mL of NaOH

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