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4.4 Intermolecular forces

Experiments

Here are experiments our science specialists have selected to support the IB* topic.

Recommended

Evaporation and Intermolecular Attractions

Experiment #9 from Chemistry with Vernier

In this experiment, you will

  • Study temperature changes caused by the evaporation of several liquids.
  • Relate the temperature changes to the strength of intermolecular forces of attraction.

Recommended

Understanding Intermolecular Forces Using a Gas Chromatograph: Enthalpy of Vaporization

Experiment #10 from Organic Chemistry with Vernier

In this experiment, you will

  • Collect and analyze GC data from various samples.
  • Calculate the enthalpy of vaporization of various compounds from GC temperature dependent data.
  • Identify an unknown sample based on its enthalpy of vaporization using values calculated from known standards.

Recommended

Using Freezing-Point Depression to Find Molecular Weight

Experiment #4 from Advanced Chemistry with Vernier

In this experiment, you will

  • Determine the freezing temperature of the pure solvent, lauric acid.
  • Determine the freezing temperature of a mixture of lauric acid and benzoic acid.
  • Calculate the freezing point depression of the mixture.
  • Calculate the molecular weight of benzoic acid.

Recommended

Evaporation and Intermolecular Attractions

Experiment #8 from Investigating Chemistry through Inquiry

In the Preliminary Activity, you will gain experience using a Temperature Probe while you determine the temperature change as ethanol, C2H5OH, evaporates.

After completing the Preliminary Activity, you will first use reference sources to find out more about alkanes and alcohols before you choose and investigate a researchable question dealing with temperature changes as alkanes and alcohols evaporate.

Educational Standard
International Baccalaureate (IB)
Subject
Chemistry
Section
Core
Topic
4. Chemical Bonding and Structure

* The IB Diploma Program is an official program of the International Baccalaureate Organization (IBO) which authorizes schools to offer it. The material available here has been developed independently of the IBO and is not endorsed by it.

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