Weak acid + Strong base titration:
At equivalence point: pH > 7
pKa = pH halfway from equivalence point:
Use Figure 19.9 to find an indicator for these titrations:
(a) 0.25 M C6H5COOH (see Appendix C) with 0.25 M KOH
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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.