Fizzing Races: Ionization of HCl and Acetic Acid
Description: Equal molar concentrations of HCl and Acetic acids are poured into two beakers containing sodium carbonate. The beaker containing the acetic acid gradually fizzes up the beaker while the HCl immediately fizzes up the beaker and runs over the top of the beaker.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Hydrochloric acid, Acetic acid, Sodium bicarbonate, Carbon dioxide, Strong acid, Weak acid
Rating: 
Hazard: Some
- Skin corrosion hazard
- Corrosive to metals
- Use of inert gas-producing reagents
- Inhalation hazard
- Specific organ toxicity – respiratory system
Effectiveness: Average
- Results are observable with guidance
- Mild effects are seen by audience
- Contrast between system is noticeable
- Time to results is medium
- High reliability
Difficulty: Medium
- Some simultaneous manipulations are required
- Use of mildly reactive substances
- Simple procedures
- Demos in which a display is used
- Demos in which assistance is desired
Safety Precautions:
- Eye protection required
- Gloves required
- Absorbent materials on hand
- Perform in a well-ventilated area
- Absorbent materials on hand
- Avoid exposure to mists, gases, and vapors
Class: Acids and Bases, Gas-producing Reactions, Entropy
Division: General, Analytical Chemistry
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