separation (from the table bredda) Flashcards
How exactly does separation work for Filtration
Using the Difference in particle size
What is filtration used to separate?
Insoluble solid from liquid e.g soil from water
How exactly does separation work for the use of solvents, filtration and crystallisation?
Using the Difference in solubility
What are solvents, filtration and crystallisation used to separate?
Two solids; eg. sodium chloride and sand
How exactly does separation work for sublimation?
one solid sublimes and the other does not
What does sublimation separate?
two solids, eg. ammonium chloride from sodium chloride
How exactly does separation work for simple distillation?
Widely differing boiling points
What does simple distillation separate?
solvent from solutions, eg. water from copper sulfate solution
How does fractional distillation work?
there are small differences in boiling points
What does fractional distillation separate?
miscible liquids, e.g. ethanol and water
What is the basis of separation for the separating funnel?
immiscible liquids forming separate layers (think of oil and water)
What does the separating funnel separate?
immiscible liquids eg. oil and water
What is the basis of separation for chromatography?
the difference in rates of migration of different solutes in a solvent due to differences in solubility
What does chromatography separate?
a wide range of mixtures including coloured solutions, e.g, pigments in ink or grass
What is the basis of separation for solvent extraction
difference of solubility in different solvents that are immiscible
