WorksheetsParacetamol extraction
Total questions: 7
Worksheet time: 2mins
What is the name of this molecule?
Ibuprofen
Paracetamol
Caffeine
Aspirin
what is the melting point of pure paracetamol?
58oC
100oC
78oC
169oC
What happens to the warm paracetamol solution if it is allowed to cool?
Paracetamol will crystallise out
The propanone reacts with the paracetamol
The paracetamol will turn pink
The propanone will boil
What name is given to the type of filtration used in this extraction?
Suction filtration
Gravity filtration
Hot gravity filtration
Vacuum filtration
What is the solubility of paracetamol in cold water?
1.4g/100ml
5g/100ml
76g/100ml
128g/100ml
Why can we not use warm water to wash the purified paracetamol?
The warm water will react with the paracetamol
The purified paracetamol wil dissolve in the water and pass through the filter paper
The paracetamol will react with the filter paper when warm water is used
Paracetamol has a higher toxicity in warm water compared to cold water
Why must the solution of paracetamol and propanone be kept below 56oC?
The propanone will start to condense
The paracetamol will start to melt
The paracetamol will dissolve too much
The propanone will boil off
