See the following example Data Table 1 Titration of Vinegar with Sodium

experimental data. See the following example: Data Table 1: Titration of Vinegar with Sodium Hydroxide Vinegar Sample 1 Vinegar Sample 2 Vinegar Sample 3 Mass of Vinegar g 4.8 4.9 5.0 Volume of Vinegar Density = 1.005 g/mL 134 130 136 Initial NaOH volume in syringe ml 8.9 9.5 10 Final NaOH volume in syringe ml 5.2 4.3 5 Volume of NaOH Delivered ml 3.8 5.2 5 Moles of NaOH Delivered M 1.201 1.01 .79 Moles of Acetic Acid in Sample .807 0.802 0.809 Mass of Acetic Acid in Sample 1.01 1.01 1.01 Calculated Molarity of Acetic Acid in the sampled vinegar 0.807 0.802 0.809 Calculated Percent Mass of Acetic Acid in sampled vinegar 4.3 4.9 4.89 Average Calculated Percent Mass of Acetic Acid in Sampled Vinegar 4.6% Activity 2: Titration of an Unknown Vinegar Sample with Sodium Hydroxide Data Table 2: Titration of Second Vinegar Sample with Sodium Hydroxide Name of Vinegar Sample Vinegar Sample 1 Vinegar Sample 2 Vinegar Sample 3

3 Mass of Vinegar g 4.97 5.1 4.8 Volume of Vinegar Density = 1.005 g/mL 130 139 134 Initial NaOH volume in syringe ml 10 9.6 10.2 Final NaOH volume in syringe 3.8 3.5 4.1 Volume of NaOH Delivered ml 6 7.2 7.9 Moles of NaOH Delivered 0.094M .096M .095M Moles of Acetic Acid in Sample 0.85M 0.84M 0.846M Mass of Acetic Acid in Sample 2.02g 2.02g 2.02g Calculated Molarity of Acetic Acid in the sampled vinegar 0.792M 0.789M 0.790M Calculated Percent Mass of Acetic Acid in sampled vinegar 3.9% 3.49% 3.72% Average Calculated Percent Mass of Acetic Acid in Sampled Vinegar 3.6% Activity 3: Calculations of pK a from Sample Lab Data