3) 125.0 mL of an CH3COOH (Ka = 1.8 x 10-5) solution of unknown concentration are titrated with 0.5100 M NaOH. The equivalence point is reached after 39.70 mL of NaOH have been added. a. Determine the concentration of the NaOH solution. b. What is the pH at the equivalence point? C. What is the pH when 25.00 mL of NaOH have been added?

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.