Monday 10 July 2017

1.11: Understand How a Chromatogram Provides Information about the Composition of a Mixture



PAPER CHROMATOGRAPHY - COMPOSITION OF A MIXTURE
Diagram showing the Composition of an Ink using Paper Chromatography

COMPOSITION OF A MIXTURE:

  • Chromatogram shows the composition of mixture as different coloured substances (components) and will spread apart as they have different solubilities so will travel at different rates
  • Pure susbtance will only produce one spot on chromatogram during paper chromatography
  • In the diagram above, Red, Blue, and Yellow are three pure substances, whilst sample on left is a mixture of all three

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1.2: Understand the Interconversions between the Three States of Matter in Terms of: The Names of the Interconversions, How they are Achieved, the Changes in Arrangement, Movement and Energy of the Particles

INTERCONVERSIONS BETWEEN STATES OF MATTER: Diagram showing the interconversions between the states of matter EXPLANATION: CHANGE EXPLANATION...