Required practical - Titrations

Question 1

Method for required practical

Answer 1

1) Use the pipette and pipette filler to add 25 cm3 of alkali to a clean conical flask.
2) Add a few drops of indicator and put the conical flask
3) Fill the burette with acid and note the starting volume.
4) Slowly add the acid from the burette to the alkali in the conical flask, swirling to mix.
5) Stop adding the acid when the indicator turns to colourless

6) Repeat steps 1 to 5 until you get concordant results. More accurate results are obtained if acid is added
drop by drop near to the end-point.

Question 2

What are the risks?

Answer 2

Causes skin and serious eye irritation

Causes eye irritation