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Chromatography
Explain the process of using paper chromatography to separate mixtures of soluble colored substances with an appropriate solvent.
4
Objectives
40
Flashcards
28
Questions
90 min
Study time
CambridgeIGCSEChemistryExperimental techniques and chemical analysis
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Chromatography outcomes4 objectives
- Explain the process of using paper chromatography to separate mixtures of soluble colored substances with an appropriate solvent.
- Analyze simple chromatograms to determine: (a) unknown substances by comparing them with known substances (b) whether substances are pure or impure.
- Explain how paper chromatography can be applied to separate mixtures of soluble colorless substances using a suitable solvent and a locating agent, without needing to know specific locating agents.
- State and apply the formula for Rf, where the distance traveled by substance R is equal to the distance traveled by the solvent.
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