Unit 3 · Properties of Substances and Mixtures

Chapter 3.5

Separating Mixtures and Why Things Dissolve

Ink is one color on the pen and five colors on a wet paper towel. Every separation, from that towel to an oil refinery, is a competition between attractions, and the same competition decides what dissolves.

in preparation · lesson 13 of 45

By the end

  1. 01Explain chromatography as competing attractions to a mobile and a stationary phase
  2. 02Explain distillation through the vapor pressures set by intermolecular forces
  3. 03Read relative polarities from a chromatogram
  4. 04Predict solubility and miscibility from matching intermolecular forces

In unit 3

  1. 3.1Intermolecular Forces: Why Molecules Stick Together
  2. 3.2Solids, Liquids, and Gases: Properties from Particles
  3. 3.3The Ideal Gas Law, Kinetic Molecular Theory, and Real Gases
  4. 3.4Solutions and Molarity: Picturing What Is Dissolved
  5. 3.5Separating Mixtures and Why Things Dissolve
  6. 3.6Light as a Probe: Spectroscopy, Photons, and the Beer–Lambert Law
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