JCS15 MM

JCS15 MM

1. Mixtures

   • A mixture of a solvent and a solute.
   • Salt + water
     • Evaparation
       • The water is boiled till it evaporates into vapor and leaves salt behind as a solid.  The boiling point of water is lower compared to the boiling point of salt.
   • Sand + water
     • Filtration
       • A technique used to separate an insoluble solid from a liquid
   • Alcohol + water
     • Distillation
       • This technique relies on the fact that the compounds in the mixture have different boiling points.
   • Dyes
     • Chromatography
       • A method used to separate colours from ink samples.

2. 15. Particles in solution

   • Dilute
     • A dilute solution contains very little solute and a large amount of solvent, such as water.  More solvet than solute 
     • Adding water, makes it more diluted
       • Squash
   • Concentrate
     • A concentrated solution contains a large amount of solute compared to the solvent. More solute than solvent
   • Insoluble
     • When a solid object will not  dissolve in a solvent
     • Silk
     • Egg
     • Plastic
     • Led
     • Wood
   • Soluble
     • When a solid object will dissolve in a solvent
     • Sugar (in water)
     • Limestone (in water)
     • Sandstone (in water)
     • Coffee granules (in water)
     • Salt (in water)
     • Filtration
       • The separation of small insoluble solids from a liquid 
     • Distillation
       • A method of separation that can be used on a soluble solid and its solvent, or two miscible liquids (liquids that mix)
   • Solution
     • The result of dissolving a solute in a solvent solute + solvent 
     • Solute
       • A substance that disolves 
       • Solvent
         • A substance that a solute disolves in 
         • No more solute can dissolve in it
     • Sugar is a solution
       • sugar is the solute
         • water is the solvent.
     • Seawater is a solution
       • salt is the solute
         • Water is the solvent
       • Soda water is a solution
         • carbon dioxide is the solute
           • Water is the solvent
   • Saturated
     • Contains as much dissolved solute as possible at a given temperature