Heterogeneous vs. Homogeneous Mixtures

1 Heterogeneous vs. HomogeneousMixturesHow are they different? Homogeneous Mixtures have uniformcomposition Heterogeneous Mixtures have non-uniformcompositionWhat type of Mixtures are these? Cheerios Trail mixTrail mix is HETEROGENEOUSC heerios is Homogeneous Apple juice Orange juice with pulp Chocolate dough Italian salad dressingWhat type of Mixtures are these? Apple juice is Homogeneous Orange juice with pulp is Heterogeneous Chocolate dough is Homogeneous Italian salad dressing is heterogeneousMayonnaise, which is mainly made of oil and wateroil & waterWhat type of Mixtures are these?homogeneousheterogeneousmayonnaise , (made of oil & water)waterHow many components? How many phases?oil & waterwater phaseWater phase, oil phase, and many other phase and oil phaseHow many components? How many phases? It depends on the type of mixture, whether they are Homogeneous or heterogeneousHow would you separate Mixtures ? Homogeneous MixturesHeterogeneous Mixturescentrifugationcoagulationdistill ationevaporationfiltrationhand pickingmagnetic separationsievingwinnowingsedimentationM ixture Separation Techniques True solution Colloidal solutions SuspensionsThese solutions typically differ in the particle size of the Mixtures True solution: solute size: <1 nm Colloidal solutions : solute size: 1 nm to 100 nm Suspensions: solute size: >100 nmThese solutions typically differ in the manner in which the solutes reside in the Mixtures True solutions : The solute is dissolved and is invisible Colloidal solutions : The solute is dispersed uniformly throughout the solution; the presence of the solute is visible, but you cannot lift it out Suspensions: The solute stays outside the solvent.

2 That is, the solute is suspendedThese solutions typically differin the manner in which the solute can be separated from the MixturesTrue solutionsColloidal solutionsSuspensionsevaporationcoagulati onfiltrationdistillationcentrifugationse dimentationSeparation Techniques for Solution-Based MixturesWe will discuss coagulation, centrifugation and sedimentatio