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Experiment7 - Antacid Analysis percent Acetic Acid in...

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Antacid Analysis & percent Acetic Acid in Vinegar The purpose of this experiment was to use acid-base titration to determine the percent of acetic acid in vinegar and to determine the neutralization capacity of antacid tablets. In this case, a Tums tablet was used. In part one, the molarity of NaOH was determined by titrating the KHP solution with NaOH. After the solution turned pink, the end point was reached and a final volume of 21.25 mL was recorded. Because there is a 1:1 mole ration between KHP and NaOH, the molarity was then calculated with the following recorded data: 0.00614 moles NaOH, 21.25 mL = .2889M. The trial was performed three times because [OH - ] was not within 1.0% during the first two trials. Following the third trial, the average molarity to be calculated (.2935M) with an average deviation of .003067. All calculations in each trial all seemed to be close to each other and the average deviation was a very small value. Balanced eq: KHP (aq) + OH - (aq) P 2- K + + H 2 O
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