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In a titration of a 100.0mL 1.00M HA weak acid solution with 1.00M NaOH, what is...

In a titration of a 100.0mL 1.00M HA weak acid solution with 1.00M NaOH, what is the pH of the solution after the addition of 126 mL of NaOH? Ka = 1.80 x 10-5 for HA. (3 significant figures)

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