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A 15.00 mL sample of vinegar is diluted with water to a final volume of 50.00 mL. A 10.00 mL portion of the diluted vinegar is then titrated with 1.000 x 10-2 M NaOH. If 12.97 mL of NaOH is required to reach the equivalence point, what is the original concentration of acetic acid in the vinegar? Molecular chemical equation: CH3CO2H(aq) + NaOH(aq) -> CH3CO2Na(aq) + H2O(l)

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