Review the lab data found in Data Table 3 This is from a titration of a vinegar

Review the lab data found in data table 3 this is

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1. Review the lab data found in Data Table 3. This is from a titration of a vinegar sample using a pH meter. 2. Determine the volume of 0.1M NaOH consumed during the titration. Record the answer. 3. Calculate the Molarity of the Acetic Acid in the vinegar samples. Record the answer. 4. Calculate the pKaof acetic acid from the midpoint data using the Henderson-Hasselbach equations in the Background section. 5. Find the average calculated molarity, percent by mass concentration, and pKafor acetic acid based on the provided data. Data Table 3 : Titration of Vinegar by Sodium Hydroxide Vinegar Sample 1 Vinegar Sample 2 Vinegar Sample 3 Initial pH Reading pH = 3.211 pH = 3.102 pH = 3.105 Initial Buret Reading 2.89 mL 3.00 mL 1.61 mL Midpoint pH Reading pH = 4.895 pH = 4.687 Midpoint Buret Reading 12.92 mL 9.50 mL Final pH Reading pH = 8.238 pH = 8.531 pH = 8.934 Final Buret Reading 20.12 mL 20.31 mL 19.00 mL Volume of NaOH Consumed Calculated Molarity of Acetic Acid in the Vinegar Sample Volume NaOH Consumed at Midpoint Reading Moles of NaOH Consumed at Midpoint Reading [A–] Moles of Acetic Acid Remaining at Midpoint [HA] Calculated p K a Average calculated molarity of acetic acid ___________________________ Average acetic acid concentration expressed in percent by mass ___________ Average value of p K a of acetic acid based on provided experimental data ____________ Percent error for p K a of acetic acid ___________ 7 ©2014, Carolina Biological Supply Company
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Determination of Acetic Acid Concentration in Vinegar Using Titration 8 ©2014, Carolina Biological Supply Company
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  • Spring '20
  • pH, Sodium hydroxide

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