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Determination of Acetic Acid Concentration in Vinegar Using Titration March 30, 2021
1 © 2016 Carolina Biological Supply Company Data Activity 1 Data Table 1 Name of Vinegar Sample Vinegar Sample 1 Vinegar Sample 2 Vinegar Sample 3 Mass of Vinegar 4.99 5.0 5.08 Volume of Vinegar 4.88 4.98 5.05 Initial NaOH Volume in Syringe 9.1 10.0 9.8 Final NaOH Volume in Syringe 5.3 6.9 6.8 Volume NaOH Delivered 3.8 3.1 3.0 Moles of NaOH Delivered 0.0038 0.0031 0.003
2 © 2016 Carolina Biological Supply Company Name of Vinegar Sample Vinegar Sample 1 Vinegar Sample 2 Vinegar Sample 3 Moles of Acetic Acid in Sample 0.13855 0.113026 0.19038 Mass of Acetic Acid in Sample 5.05 4.12 3.77 Calculated Molarity of Acetic Acid in Sample Vinegar 0.76 0.62 0.59 Calculated Percent Mass of Acetic Acid in Sample Vinegar 7.6% 6.2% 5.9% Average Calculated Percent Mass of Acetic Acid in Sample Vinegar 6.56%
3 © 2016 Carolina Biological Supply Company Activity 2 Data Table 2 Name of Vinegar Sample Vinegar Sample 1 Vinegar Sample 2 Vinegar Sample 3 Mass of Vinegar 5.0 5.1 4.8 Volume of Vinegar 4.98 5.07 4.78 Initial NaOH Volume in Syringe 10.0 9.9 9.8

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