What is the pH of the solution in the titration experiment?

Question

Antonietta · Answer

The pH of the buffer solution is 7.236  Explanation:  Henderson - Hasselbalch equation of a buffer solution consisting of a weak acid and its conjugate base is given as:  pH=pKa+log([conjugate base]/[weak acid]) The hypochlorous acid (HClO) is the weak acid and the conjugate base the hypochlorite anion (ClO⁻) is the conjugate base.  The dissociation of the salt is given by:  NaOCl(aq) ⇒ Na⁺(aq) + ClO⁻(aq)  The salt dissociates at a ratio of 1:1  Substituting values to get:  pH=pKa+log([conjugate base]/[weak acid]) pH=7.53+log(0.149M/0.293M) pH=7.53-0.2937 pH=7.236  The pH of the buffer solution is 7.236

Calculate the pH of solution in a titration experiment

The pKa of hypochlorous acid

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