Chromatography (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Flashcards
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Chromatography definition
Chromatography definition
Method to separate and identify compounds in mixtures
Use of Rf value
Use of Rf value
Identify chemicals in a mixture
The analyte
The analyte
The mixture of chemicals to be separated
The stationary phase
The stationary phase
Solid material that stays still during experiment
The mobile phase
The mobile phase
Liquid or gas that moves through stationary phase
Three key components of chromatography
Three key components of chromatography
Analyte, stationary phase, mobile phase
Movement of strongly attracted chemicals
Movement of strongly attracted chemicals
Move slowly and travel shorter distances
Movement of weakly attracted chemicals
Movement of weakly attracted chemicals
Move quickly and travel further distances
Stationary phase in paper chromatography
Stationary phase in paper chromatography
Chromatography paper
Mobile phase in paper chromatography
Mobile phase in paper chromatography
Solvent (like water or alcohol)
Distance travelled by polar chemicals
Distance travelled by polar chemicals
Shorter distance (more strongly attracted to paper)
Rf value formula
Rf value formula
Property of Rf value under same conditions
Property of Rf value under same conditions
Always the same for a specific chemical