Paracetamol extraction

What is the name of this molecule?

• Ibuprofen

• Paracetamol

• Caffeine

• Aspirin

what is the melting point of pure paracetamol?

• 58^oC

• 100^oC

• 78^oC

• 169^oC

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 56^oC?

• The propanone will start to condense

• The paracetamol will start to melt

• The paracetamol will dissolve too much

• The propanone will boil off