C12 - Chemical Analysis

• Formulation - a useful mixture where the components are in a suitable ratio to produce a useful product

  • Examples
  • Paint
  • Fuels
  • Inks
  • Dyes
• Chromatography - A technique used to separate mixtures of substances based on their solubility in a solvent

  Rf values = distance moved by solutes / distance moved by the solvent

  Rf values can be used to see what solvents are within a mixture
• Tests for the presence of gases:

  A) lit splint

  B) Squeaky pop

  C) damp litmus paper

  D) bleaches white

  E) bubbles through limewater

  F) Cloudy

  G) Glowing splint

  H) Relights