Unit 3 · Properties of Substances and Mixtures

Chapter 3.1

Intermolecular Forces: Why Molecules Stick Together

Helium boils four degrees above absolute zero and water boils at a hundred, yet both are tiny neutral particles. Everything about a liquid is decided by forces far weaker than a bond.

in preparation · lesson 9 of 45

By the end

  1. 01Explain London dispersion forces from temporary dipoles and rank them by polarizability and contact area
  2. 02Identify dipole–dipole, dipole–induced dipole, ion–dipole, and hydrogen bonding from molecular structure
  3. 03Rank the total intermolecular attraction between two molecules or species
  4. 04Recognize noncovalent interactions within and between large biomolecules

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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