rp6: chromatography

• 1. draw a pencil line on the chromatography paper - start line
  2. put a small spot of sample on the start line
  3. pour solvent into beaker
  4. place chromatography paper in solvent- start line above solvent
  5. put a lid over the beaker
  6. allow solvent to travel up paper
  7. mark a pencil line where the solvent has reached = solvent front
  8. leave to dry
• how to calculate rf value

  rf = distance moved by chemical / distance moved by solvent