Titration

So you are not sure what titration is about? Or are you not sure about the titration steps? Well, this page is for you!

What is titration?

Titration is a process whereby a solution from a suspended burette is slowly added to a known amount of a second solution, until the chemical reaction between the two is just complete. In our case, we are titrating sodium hydroxide (an alkali) with vinegar solution (an acid) using phenolphthalein as an indicator. When the colourless solution in the conical flask just turns pink, the reaction is complete.

There are many ways of doing titration. This is one of the ways of doing titration.

Materials needed: Titration materials

vinegar solution
sodium hydroxide
10 cm³ pipette
pipette filler
white tile
burette
retort stand to hold the burette
conical flask
filter funnel

Procedure: Using a pipette to prepare vinegar solution into a conical flask

Using a pipette, prepare 10 cm³ of vinegar solution into a conical flask.
Fill the suspended burette with sodium hydroxide.
Add 2 to 3 drops of phenolphthalein into the conical flask.
Add sodium hydroxide a little at a time while swirling the conical flask of vinegar solution.
Stop adding sodium hydroxide the moment the colourless solution turns pink.
Record the volume of sodium hydroxide used to neutralise 10 cm³ of vinegar solution.

Note: Use conical flask instead of a beaker. This prevents the solution from spilling.

Back to Decalcification - The steps

Decalcification - Objectives and Materials needed | Procedure | Results and Explanation

Calcification - Objectives, Materials needed and Procedure | Results and Explanation