chemistry mod 5 Flashcards
aims to collect pure substances from various mixtures
separation techniques
are separated so we can use the substances for other purposes
components of mixtures
two immiscible liquids are used. one liquid is water and the other substance is organic; thus they do not mix
liquid-liquid extraction
used when the solid particles are of different size, shape, and color and visible to human eye
mechanical picking
used when one of the components is magnetic and other components are non magnetic
magnetic separation
used when one of the components sublimes on heating. it is the process of direct change of state from solid to gas
sublimation
used when the liquid in the mixture has a low boiling point.
evaporation
process of converting a liquid into vapor and condensation of the vapor to separate the pure liquid
distillation
the condensed vapor is called?
distillate
used in solid-solid types of mixture that can be done by cooling a hot saturated solution of the mixture
crystallization
process of removing suspended impurities from a solution. it is used when the solid is insoluble in the liquid and thus forms a heterogenous mixture
filtration
used to separate a heterogenous mixture containing an insoluble solid in a liquid
sedimentation and decantation
the solid substance that settles down is called?
sediment/ sedimentation
the clear liquid is slowly poured out taking care not to disturb the solid sediment at the bottom too much. this process is known as?
decantation
method in which solid or liquid particles of different densities are separated by rotating them in a tube in a horizontal circle.
centrifugation
