Podcast
Questions and Answers
In a mixture, all substances must have the same melting point.
In a mixture, all substances must have the same melting point.
False (B)
Which process is used to separate a mixture based on different boiling points?
Which process is used to separate a mixture based on different boiling points?
- Filtration
- Evaporation
- Distillation (correct)
- Chromatography
The liquid that passes through the filter paper during filtration is called the ______.
The liquid that passes through the filter paper during filtration is called the ______.
filtrate
What is a saturated solution?
What is a saturated solution?
Temperature has no effect on the amount of solute that can be dissolved in a solution.
Temperature has no effect on the amount of solute that can be dissolved in a solution.
What two components must you identify to describe a solution?
What two components must you identify to describe a solution?
Which of the following techniques relies on particle size to separate components?
Which of the following techniques relies on particle size to separate components?
In chromatography, the resulting pattern of separated substances is called a ______.
In chromatography, the resulting pattern of separated substances is called a ______.
What information can be gained by interpreting temperature change data of a substance?
What information can be gained by interpreting temperature change data of a substance?
What is the purpose of using particle diagrams when discussing solutions?
What is the purpose of using particle diagrams when discussing solutions?
Evaporation can be used to separate all types of mixtures.
Evaporation can be used to separate all types of mixtures.
Which separation technique is most suitable for separating colored pigments?
Which separation technique is most suitable for separating colored pigments?
The substance that dissolves in a solvent is called the ______.
The substance that dissolves in a solvent is called the ______.
Which of the following is NOT a use of filtration?
Which of the following is NOT a use of filtration?
If you have a mixture of salt, sand, and water, describe the steps you would take to separate each component.
If you have a mixture of salt, sand, and water, describe the steps you would take to separate each component.
Match the separation technique with the property it exploits:
Match the separation technique with the property it exploits:
Explain how chromatography is used to monitor the progress of reactions.
Explain how chromatography is used to monitor the progress of reactions.
In what situation is evaporation or distillation NOT suitable for separating a mixture?
In what situation is evaporation or distillation NOT suitable for separating a mixture?
When using chromatography to separate a mixture, the degree to which a component moves up the chromatography paper is related to its ______ to the solvent, its ______ to the stationary phase, and the ______ of the solvent.
When using chromatography to separate a mixture, the degree to which a component moves up the chromatography paper is related to its ______ to the solvent, its ______ to the stationary phase, and the ______ of the solvent.
If two substances have identical Rf values in multiple chromatography systems using different solvents and stationary phases, it definitively confirms they are the same substance.
If two substances have identical Rf values in multiple chromatography systems using different solvents and stationary phases, it definitively confirms they are the same substance.
Flashcards
Mixture Composition
Mixture Composition
Parts of mixtures are not chemically joined.
Melting Points in Mixtures
Melting Points in Mixtures
In a mixture, each substance retains its own distinct melting point.
Solvent
Solvent
A substance that dissolves another (solute).
Solute
Solute
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Solution
Solution
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Saturated Solution
Saturated Solution
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Solubility
Solubility
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Filtrate
Filtrate
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Residue
Residue
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Evaporation
Evaporation
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Distillation
Distillation
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Chromatography
Chromatography
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Study Notes
Mixtures (C2 2.1)
- Parts of mixtures are not joined together.
- Different substances in mixtures have different melting points.
- Describe particle arrangements in mixtures.
- Identify pure substances.
- Use particle models to represent mixtures.
- Comment on a substance’s purity by interpreting temperature change data.
Solutions (C2 2.2)
- Identify a solvent, solute, and solution in a given scenario.
- A solution contains dissolved particles.
- Describe solutions using key words.
- Use the particle model to explain dissolving.
- Explain the relationship between solutes, solvents, and solutions.
- Draw particle diagrams to represent solutions and pure substances.
Solubility (C2 2.3)
- Describe what happens when a solute dissolves.
- Describe how temperature affects solubility.
- Explain what a saturated solution is.
- Explain the meaning of solubility.
- Explain why temperature affects the amount of solute dissolved in a solution.
- Explain what a solubility graph shows.
Filtration (C2 2.4)
- Name the filtrate and residue in given situations.
- State some situations in which filtering is used.
- Explain how filtration works.
- Describe how to filter a mixture.
- Use particle diagrams to illustrate how filtering works.
- Explain whether or not filtering can be used in given situations.
Evaporation and Distillation (C2 2.5)
- State some mixtures can be separated using evaporation.
- State some mixtures can be separated using distillation.
- Explain how to use evaporation to separate mixtures.
- Explain how distillation works.
- Compare evaporation and distillation.
- Discuss whether evaporation or distillation would be suitable for separating a mixture.
Chromatography (C2 2.6)
- State what happens to mixtures when they undergo chromatography.
- Describe what a chromatogram looks like.
- Explain how chromatography separates mixtures.
- Analyse chromatograms to identify substances in mixtures.
- Explain how chromatography can be used in different scenarios.
- Consider how chromatography can be used to monitor the progress of reactions.
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