Procedure
1. If you are using soda (sprite and coke) use NaOH and for the
2. Wash and rinse buret thoroughly. Add 25 mL of sprite to the buret.
3. Fill buret with NaOH and allow the solution to run out of the buret tip. We have to make sure that there is no air bubbles when it is dripping.
It is important that we read and record the initial and after the solution volume.
4. Place the 125-mL Erlenmeyer flask above the NaOH buret. Add acid to the flask. Read the buret and record both the initial and final volumes from the buret into your data table.
5. Add three drops of phenolphthalein to the flask, and swirl the flask to mix thoroughly.
6. Move the flask so it is beneath the NaOH buret. Place the flask on a sheet of white paper so a color change will be more readily observed.
7. After recording the initial volume of NaOH in the buret, begin the titration by adding NaOH to the HCl flask. A pink/purple color will appear in the flask. Swirling the flask should make the pink color disappear. At that point begin adding the NaOH more slowly, swirling the flask after each drop is added. As soon as a faint pink color becomes permanent, stop the titration thats how you know the end point has been reached.
If you do go past the end point, add a few drops of acid record the volume and add more base.
8. Record the final volume of base in the buret.
9. Repeat the titration, performing at least two more trials . Rinse the Erlenmeyer flask every time you try a new trial