Purpose: The goal of out experiment was to find the equivalence point which was when the blue base turned into a light green. This base became neutralized.
Hypothesis: The blue basic solution will turn light green when you increase the amount of acid mixed in to reach the equivalence point.
· Erlenmeyer Flask
· A Burette
· A Graduated Cylinder
· Sodium Hydroxide (Base, NaOH)
· Hydrochloric Acid (Acid, HCl)
· BTB Indicator
1. Clean flask and graduated cylinder.
2. Make sure the burette is secure in the clamp.
3. Check to see if the burette is filled to the top at 0 mL with HCl (your acid)- if not, fill it up.
4. Take your Erlenmeyer flask and fill it with 15 mL of NaOH (your base).
5. Add 5 drops of your indicator to your base.
6. Place your flask with your base under the burette to look like this:
7. Release acid from the burette into the flask until your mixture turns a light green.
8. Swirl the flask with the base and acid as you...