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Exactly 20.00 mL of standard 0.1171 M Ca(OH)2 are titrated with a solution of citric acid, H3C6H5O7. If 17.43 mL of the citric acid solution are required to reach the endpoint, what is its molarity? (Hint: In order to calculate the correct answer, you must first determine the balanced equation for the titration reaction.)

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