C8 - Chemical Analysis

C8 - Chemical Analysis

1. Gas Tests

   • Oxygen
     • Relights the glowing splint
   • Carbon Dioxide
     • Bubbles the gas through limewater clear to cloudy
   • Hydrogen
     • Burns with a squeaky pop
   • Chlorine
     • Bleaches blue litmas paper

2. Testing for positive ions

   • Flame tests
     • Sodium
       • Yellow
     • Copper
       • Green
     • Calcium
       • Orange Red
     • Lithium
       • Crimson
     • Pottassium
       • Lilac
   • Adding sodium hydroxide
     • Calcium
       • White Precipitate
       • Copper
         • Blue Precipitate
         • Iron (II)
           • Green Precipitate
           • Iron (III)
             • Brown Precipitate
             • Aluminium
               • White Precipitate
                 • Dissolves when more sodium hydroxide is added

3. Chromatography

   • Rf value
   • Things that can go wrong
   • Method