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- Jul 18, 2008
A buffer made by mixing 100 mL of 0.5 M HOAc (Ka = 1.8E-5) with 25 mL of 1.0 M KOH has a pH approximately equal to which of the following values?
It's a weak base and a strong acid in a 2:1 mole ratio. "This means that pH = pKa." pH = pKA if amounts or concentrations of base and acid are equal. Last time I checked, 2 and 1 aren't equal and so pH shouldn't be equal to pKa?