Separation of mixtures

1. what is homegeneous? What is solute ? Separation of mixtures Uniformly mixed – only see one layer substance that dissolve in a solvent What is solution ? Mixture of the solute and the solvent What is solvent? Is a substance that dissolves the solute The mind map is to big . It will continue next slide

2. Method of separation Physical method used to separated different mixtures Example: air ,water . Crude oil Example of physical methods: magnetic attraction , flirtation and evaporation Separation of mixtures part2 What is No separation of solute and solvent? What is No residue after flirtation? Always maintain a uniform appearance Cannot be separated by filter Properties of suspension • Non homogenous • Resident present after flirtation • Separation of solute and solvent when left to stand The mind map is to big . It will continue next slide

3. Paper chromatography Separation of mixture part 3 Crystallisation Use to separate small amounts of mixtures. Make sure of the fact that difference substances dissolve to different extend mixtures. Used to separate mixtures of colour substance such as ink and dyes. Also used to identity the content of mixture or to test the purity of a liquid Used to separate a soluble solid from a solid liquid mixture. The solid is first dissolved in solvent to produce a solution . The solution is then heated to evaporate most of the solvent . The solution now is said to saturated. On cooling , the dissolve solids appear as crystals . The impurities remain in the solution. The crystals can be dried