Methods for Separating Mixtures

Methods for Separating Mixtures

1. Homogeneous

   • Distillation takes advantage of differences in boiling points.
     • Evaporation removes a liquid from a solution to leave a solid material.
       • Filtration separates solids of different sizes.
         • Chromatography involves solvent separation on a solid medium.
           • HOMOGENEOUS MIXTURES EXAMPLES:
             • Air Sugar water Rainwater Vodka Vinegar Dishwashing detergent Steel

2. Heterogenous

   • Crystallization is defined as a process by which a chemical is converted from a liquid solution into a solid crystalline state.
     • Solubility, degree to which a substance dissolves in a solvent to make a solution (usually expressed as grams of solute per litre of solvent).
       • Filtration, the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles.
         • Magnetism is the force exerted by magnets when they attract or repel each other.
           • HETEROGENEOUS MIXTURES EXAMPLES:
             • Cereal in milk Vegetable soup Pizza Blood Gravel Ice in soda Salad dressing Mixed nuts Bowl of colored candies Soil

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