Chem112 _Lab6_MRead.docx - Experiment6 Objective 10.5 9 7.5...

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Experiment 6 pH Titration Curves - Acid Content of Soda 6/26/2017 Objective: The purpose of the experiment was to determine the acid content of a clear or 0 1.5 3 4.5 6 7.5 9 10.5 Clear soda Volume of NAOH added (mL) PH dark soda and obtain evidence that  confirm s either citric or phosphoric acid. We will assume that the experiment went according to the given procedure with no deviations. Graphs:
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Calculations: Clear soda Final equivalence point was approximately 8.8 pH at 9.5 mL I divided by 3 to find the first equivalence point and multiplied by 2/3 to find the s 0 1.5 3 4.5 6 7.5 9 10.5 Brown soda Volume of NAOH added (mL) pH econd. Halfway point 1: pH at 1.5 mL = 3.64  Ka1 = 2.29x10^-4 Halfway point 2: pH at 4.5 mL = 4.75  Ka2 = 1.77 x10^-5 Halfway point 3: pH at 8.0 mL = 6.34
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  • Spring '08
  • Hardy
  • pH, Sodium hydroxide, halfway point

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