Chemical analysis

• pure substance

  • unadutterated (nothing added to them)
• formulation


  mixture that has been designed as a useful product
• example of a formulation

  • cleaning products
  • paints
  • medicine
• chromatography

  separation of mixtures
• RQ- chromatography

  • ruler and pencil
  • pour solvent in beaker, depth of 1cm
  • pipette drop ink onto middle online of pencil draw circle
  • place in beaker just above the starting line
• calculating Rf value

  distance traveled component/distance traveled solvent
• mobile phase

  • liquid carries the sample
• stationary phase

  • solid material stays fixed in place
• hydrogen gas test

  • metals and acids
  • lit splint, mouth of test tube
  • squeaky pop sound
• oxygen test

  • electrolysis
  • lit splint out, embruing splint reignites
• carbon dioxide test

  • lime water
  • once shaken turns cloudy
• chlorine test

  • damp litmus paper
  • bleached from blue to white