Experiments
Here are experiments our science specialists have selected to support the IB* topic.
Properties of Solutions: Electrolytes and Non-Electrolytes
Experiment #13 from Chemistry with Vernier
In this experiment, you will
- Write equations for the dissociation of compounds in water.
- Use a Conductivity Probe to measure the conductivity of solutions.
- Determine which molecules or ions are responsible for conductivity of solutions.
- Investigate the conductivity of solutions resulting from compounds that dissociate to produce different numbers of ions.
Conductivity of Solutions: The Effect of Concentration
Experiment #14 from Chemistry with Vernier
In this experiment, you will
- Use a Conductivity Probe to measure the conductivity of solutions.
- Investigate the relationship between the conductivity and concentration of a solution.
- Investigate the conductivity of solutions resulting from compounds that dissociate to produce different number of ions.
Effect of Temperature on Solubility of a Salt
Experiment #12 from Chemistry with Vernier
In this experiment, you will
- Study the effect of changing temperature on the amount of solute that will dissolve in a given amount of water.
- Plot a solubility curve.
Conductimetric Titration and Gravimetric Determination of a Precipitate
Experiment #16 from Advanced Chemistry with Vernier
In this experiment, you will
- Measure the conductivity of the reaction between sulfuric acid and barium hydroxide.
- Use conductivity values as a means of determining the equivalence point of the reaction.
- Measure the mass of a product of the reaction as a means of determining the equivalence point of the reaction gravimetrically.
- Calculate the molar concentration of a barium hydroxide solution.
Conductivity of Aqueous Solutions
Experiment #4 from Investigating Chemistry through Inquiry
In the Preliminary Activity, you will gain experience using a Conductivity Probe and data- collection software. You will first measure the conductivity of distilled water, and then, after adding NaCl solid to the distilled water, you will measure the conductivity of the resulting NaCl solution.
After completing the Preliminary Activity, you will first use reference sources to find out more about electrolytes and the electrical properties of aqueous solutions before you choose and investigate a researchable question dealing with the conductivity of aqueous solutions.
- 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.