evaporation and crystallisation Flashcards
whats evaporation used for
to separate a dissolved solid from a solvent/liquid
eg salt and water
what does evaporation involve
placing a mixture into an evaporating dish and heating gently until all solvent exaporates and the solid id left in the basin
draw the diagram of evaporation
google it
whats crystallisation similar to
evaporation
whats crystallisation used for
to separate a dissolved solid from a solvent
what does crystallisation involve
heating a solution to boil off most of solvent this creates a saturated solution then crystals form
whats a saturated solution
a solution where no more solid can dissolve at that temperate
whats the process of crysallisation
Crystallisation is the process of forming crystals from a solution and it is carried out by heating a solution in an evaporating basin which is then allowed to cool. Crystals form on cooling.