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Questions and Answers
What does filtration separate from a liquid?
What does filtration separate from a liquid?
- Insoluble solids (correct)
- Gases
- Dissolved ions
- Soluble solids
What occurs during the crystallisation process after heating a saturated solution?
What occurs during the crystallisation process after heating a saturated solution?
- The solution must remain continually hot.
- Crystals of the solute begin to form. (correct)
- The solution becomes less concentrated.
- The solute does not form any crystals.
In the filtration setup, what is the role of the filter paper?
In the filtration setup, what is the role of the filter paper?
- To filter out dissolved ions from the solution.
- To allow both liquids and solids to pass through.
- To prevent any liquid from passing through.
- To allow liquids to pass through while retaining solids. (correct)
What happens to solubility when a saturated solution cools down?
What happens to solubility when a saturated solution cools down?
What is the purpose of placing crystals in an oven after crystallisation?
What is the purpose of placing crystals in an oven after crystallisation?
Flashcards
Filtration
Filtration
A separation technique where an insoluble solid is separated from a liquid by passing the mixture through filter paper.
Filtrate
Filtrate
The liquid that passes through the filter paper in filtration.
Residue
Residue
The solid that remains on the filter paper in filtration.
Crystallisation
Crystallisation
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Saturated Solution
Saturated Solution
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Study Notes
Filtration
- Filtration separates an insoluble solid from a liquid or solution
- Filter paper has tiny holes that allow liquids to pass through, but not solids
- The liquid that passes through is called the filtrate
- The solid that remains on the filter paper is called the residue
Crystallisation
- Crystallisation involves heating a solution until it is saturated
- This means no more solid can dissolve at that temperature
- When the solution cools, the solubility decreases
- Crystals of the solute form
- The remaining solvent is evaporated
- Crystals are dried in an oven
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