Purpose: Find the pH of candy chosen.
Materials:
6.90g of A.S.A
100 mL Water
Mortar and Pestle
50.0 mL of NaOH
Phenolphthalein
Funnel
Burrette
Graduated Cylinder
200 mL Beaker
75 mL Beaker (x3)
Procedure:
- Weigh out mass of candy (acid).
- Grind candy with mortar and pestle.
- Combine 100 mL of water with grinded candy.
- Filter the mixture.
- Drop NaOH into 10 mL of the mixture until color changes (Do 3 trials).
Calculations:
Conclusion:
We found that A.S.A has a pH value of 2.5. According to the internet, the average pH of A.S.A (Aspirin) is 1-3.