Conductivity and Extent of Dissociation of Acids and Bases
Description: Conductivity of strong and weak acids and bases are compared.
Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry
Year: 1989 Vol: 3 Page: 140
Keywords: Conductivity, Weak acids, Strong bases, Dissociation
Rating: 
Hazard: Medium
- Acute toxicity hazard
- Electrocution hazard
- Flammability hazard
- Corrosive to metals
- Skin corrosion hazard
- Inhalation hazard
- Acute aquatic toxicity hazard
Effectiveness: Good
- Clear contrast between system behavior
- Good connection from demo to course material
- Time to results is low
- High reliability
- Mild effects are seen by audience
- Primary effects
Difficulty: High
- Some sequential or timed manipulations
- Simple procedures
- Demos at non-standard conditions
- Prior practice recommended
- Cross contamination possible
- Use of live current
Safety Precautions:
- Eye protection required
- Gloves required
- Use of UL approved three-prong plug and outlet required
- Absorbent material on hand
- Electrically insulated spatula
- Perform in a well-ventilated area
- Avoid contact with conductivity probes
- Prevent release of reagents to the environment
Class: Acids and Bases, Equilibrium, Solubility, Conductivity, Properties of Solutions
Division: General, Analytical Chemistry
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