The half-equivalence point of a titration occurs half way to the equivalence point, where half of the analyte has reacted to form its conjugate, and the other half still remains unreacted. If 0.540 moles of a monoprotic weak acid (Ka = 1.7 x 10-5) is titrated with NaOH, what is the pH of the solution at the half-equivalence point? pH

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