Titrations

Question 1

What are titrations used for

Answer 1

Used to calculate the concentration of an unknown solution from its volume

Question 2

How to carry out a titration

Answer 2

• Place some alkali (or acid) into a conical flask using a pipette
• Place acid (or alkali) into burette
• Add indicator into the burette
• Add acid from the burette unto the flask drop by drop until the solution changes colour
• Note final reading
• Repeat

Question 3

Indicators used in titrations

Answer 3

• Phenolphthalein ( colourless in acid, pink in alkali)
• Methyl Orange (red in acid, yellow in alkali)