Experiment 10 - Acid-Base Titrimetry
Part B - Standardization of the HCl Solution
- Obtain about 200 mL of the dilute HCl solution provided in a dry beaker. Rinse and fill a buret with this solution.
- Pipet three 10.00 mL portions of sodium carbonate solution into clean Erlenmeyer flasks. Add 5 drops of bromocresol green indicator into each flask.
- Titrate the first portion to a green endpoint from blue. Record the buret volume. Save the solution and use it as a colour comparison in the next titrations.
- Repeat the titration with fresh portions of sodium carbonate solution and titrate to the same endpoint colour until two titration volumes are obtained which agree
to within +/- 0.10 mL.