Unit 3 Chemistry - Titration terminology & curves

a graduated glass cylinder that dispenses volumes of a standard solution (known concentration)

• Pipette

• Burette

• Titrand

• Stopcock

What is the piece of equipment shown?

• Burette

• Stopcock

• Pipette

• Analyte

the volume of liquid measured by the pipette and added to the flask

• Titrand

• Titrant

• Titre

• Aliquot

the solution in the burette (known concentration) added to the flask

• Titrand

• Titrant

• Aliquot

• Titre

What is the name of the feature labelled C?

• Half equivalence point

• Equivalence point

• Buffer region

What is the name of the feature labelled B?

• Half equivalence point

• Equivalence point

• Buffer region

What is the name of the feature labelled A?

• Half equivalence point

• Equivalence point

• Buffer region

Define equivalence point

• when half the moles of acid or base have been neutralised

• when the solution is resisting the change in pH

• when all moles of acid have reacted with all moles of base / point of neutralisation

• when the indicator changes colour

Define end point

• when half the moles of acid or base have been neutralised

• when the solution is resisting the change in pH

• when all moles of acid have reacted with all moles of base / point of neutralisation

• when the indicator changes colour

Define buffer region

• when half the moles of acid or base have been neutralised

• when the solution is resisting the change in pH

• when all moles of acid have reacted with all moles of base / point of neutralisation

• when the indicator changes colour