Determination of Acetic Acid Concentration .docx -...

Determination of Acetic Acid Concentration in
Vinegar Using Titration
Alicia Lopez
Date

1
Data
Activity 1
Data Table 1
Name of Vinegar Sample
Vinegar
Sample 1
Vinegar
Sample 2
Vinegar
Sample 3
Mass of Vinegar 5.07 g 5.12 g 4.99 g
Volume of Vinegar 1.014 g/mL 1.024 g/mL 0.998 g/mL
Initial NaOH Volume in
Syringe
8.6 mL 8.6 mL 8.6 mL
Final NaOH Volume in
Syringe
3.8 mL 4.6 mL 3.4 mL
Volume NaOH Delivered 4.8 mL 4.0 mL 4.4 mL
Moles of NaOH Delivered 0.0048 M 0.004 M 0.0044 M
© 2016 Carolina Biological Supply Company

2
Name of Vinegar Sample
Vinegar
Sample 1
Vinegar
Sample 2
Vinegar
Sample 3
Moles of Acetic Acid in
Sample
0.0048 M 0.004 M 0.0044 M
Mass of Acetic Acid in
Sample
0.18 g 0.15 g 0.16 g
Calculated Molarity of
Acetic Acid in Sample
Vinegar
0.95 M 0.78 M 0.88 M
Calculated Percent Mass
of Acetic Acid in Sample
Vinegar
3.6% 2.9% 3.2%
Average Calculated
Percent Mass of Acetic
Acid in Sample Vinegar
3.2%
© 2016 Carolina Biological Supply Company

3
Activity 2
Data Table 2
Name of Vinegar Sample
Vinegar
Sample 1
Vinegar
Sample 2
Vinegar
Sample 3
Mass of Vinegar 5.07 g 5.12 g 4.99 g
Volume of Vinegar 1.014 g/mL 1.024g/mL