Voltaic Cells
Description: Various half-cells such as silver/silver ion, copper/copper ion, etc. are prepared, connected with a salt bridge. The voltage developed is displayed to the students.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Half-cells, Silver ions, Copper
Rating: 
Hazard: Medium
- Acute toxicity hazard – oral, inhalation
- Aquatic toxicity hazard
- Skin sensitization
- Respiratory sensitization
- Reproductive toxicity
- Germ cell mutagenicity hazard
- Electric shock hazard
- Carcinogenicity hazard- inhalation
- Skin corrosion hazard
Effectiveness: Good
- Good connection from demo to course material
- Low failure rate
- Mild effects are seen by audience
- Time to results is low
- Secondary effects noted
- Observable with guidance
Difficulty: Medium
- Some concerted or timed manipulations
- Experiments in which data is recorded or displayed
- Procedures with some intermediate steps to results
- Polarity-dependent manipulations
Safety Precautions:
- Eye protection required
- Gloves required
- Use of UL approved three-prong plug and outlet
- Absorbent materials on hand
- Avoid exposure to mists, gases or vapors
- Prevent release of reagents to the environment
Class: Electrochemistry, Redox Reactions, Voltaic Cell
Division: General, Analytical Chemistry, Inorganic Chemistry, Physical Chemistry
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