1. Acid Base Titration

2. Objective
To calculate the molarity of an acid by titrating it with a base

3. Lab Safety
(Skip 8 lines)

4. Procedure Fill buret A with acid and buret B with base.
Run 10.0 mL of acid into the erlenmeyer flask.
Add 2 drops of phenolphthalein to the erlenmeyer flask
Swirl and add base to the flask until it turns pink.

5. Procedure Add acid until the flask turns clear.
Add base SLOWLY until the flask turns the lightest pink
Record the volume of acid and base used.
Refill burets and complete lab again from step 1, but this time run 15 mL into flask

6. Data Trial 1 Molarity of Base = .652 M Volume of Base =
Volume of Acid =
Trial 2

7. Calculations
Trial 1:
MAVA = MBVB
Trial 2:

8. Calculations, con Average Trial 1 and Trial 2
Percent Error (MAactual = 0.500M)

9. Conclusion
Titration involves the reaction between an acid and a base to form water and salt. We found the molarity of the acid to be ___________ and _______________ .
My percent error was __________.
Two sources of error include: