
(a)
Interpretation:
The filtration apparatus used to remove 0.3 mg impurities from 5 mL should be determined.
Concept introduction:
Filtration is one of the purification methods used for purification of an organic liquid to make them free from solid impurities. The two kinds of filtration techniques used in
- Gravity filtration
- Vacuum filtration
(b)
Interpretation:
The filtration apparatus used to remove the crystals after recrystallization process from 20 mL solvent should be determined.
Concept introduction:
Filtration is one of the purification methods used for purification of an organic liquid to make them free from solid impurities. The two kinds of filtration techniques used in organic chemistry are as follows:
- Gravity filtration
- Vacuum filtration

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Chapter 9 Solutions
Laboratory Techniques in Organic Chemistry
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