M3: separating mixtures Flashcards
what is filtration?
is a process of separating the components of a
suspension.
In filtration, what do you call the substance that is left in the strainer?
Residue
In filtration, what do you call the liquid that passes through the strainer?
filtrate
What is sedimentation?
is the process by which insoluble heavy particles in a liquid are allowed to settle down
What is decantation?
is the process by which
sedimented liquid is separated by pouring
it in the other container.
What is chromatography?
Chromatography is another method of
separating complex mixtures. It has various methods that can be used in separating mixtures such as paper chromatography, which makes use of an adsorbent (filter paper or chromatogram paper)
how does chromatography works?
in the separation of each component of a water based ink, the dye which is very soluble in the solvent travels faster and moves up the paper while the dye that is less soluble, travels slowly and are usually at the lower part of the paper
What is distillation
Distillation is a process of separating a homogeneous mixture composed of two substances with different boiling points.
What two phase changes happens in distillation?
evaporation and condensation. Through evaporation and condensation at different
temperatures, the two liquids are collected one at a time.
What is magnetic separation?
is the process of separating elemental metals from other particles in a mixture. This process makes use of a magnet which exerts magnetic force to attract metallic particles and sets them apart from a certain mixture.
What is evaporation?
Evaporation is great for separating a
mixture (solution) of a soluble solid and a
solvent. The process involves heating the solution until the solvent evaporates (turns into gas) leaving behind the solid residue.
