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Chemistry, 01.04.2021 01:00 Bssnk

1 g of unknown acid is dissolved in 100.0 mL deionized water. Half the solution is transferred to a flask, where 1 or 2 drops of phenolphthalein indicator are added. The solution is then titrated to the endpoint with 0.5 M NaOH. The neutralized half is combined with the remaining half to create a buffer solution with a pH of 5.04. What is the Ka of the acid and the pKa?

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