Balloon Races – Ionization of Hydrochloric Acid and Acetic Acid
Common Ion Effect with Lead Iodide
Effect of Ionic Strength on Ion Dissociation
Precipitating Silver with Chromate and Chloride Ions
Precipitating Sodium Chloride from Its Solution
Precipitating Silver with Chromate and Chloride Ions
Description: When silver nitrate is added to a mixture of chromate and chloride ions, red silver chromate forms and then quickly disappears as silver chloride predominates. Only when all chloride is gone does red precipitate persist.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Selective precipitation, Silver Nitrate, Chromate, Chloride, Equilibrium
Rating: 
Hazard: High
- Acute toxicity hazard – oral, inhalation, dermal
- Oxidizer
- Reproductive toxicity hazard
- Skin corrosion hazard
- Serious eye damage
- Germ cell mutagenicity hazard
- Aquatic toxicity hazard
- Carcinogenicity hazard
- Skin sensitization
- Respiratory sensitization
Effectiveness: Good
- Good connection from demo to course material
- Low failure rate
- Results are observable with guidance
- Time to result is low
- Mild effects are observed
Difficulty: Medium
- Adding reagents in concert
- Procedures with some intermediate steps to results
- Simple manipulations for most to perform
- Use of toxic reagents
Safety Precautions:
- Eye protection required
- Gloves required
- Absorbent materials on hand
- Avoid exposure to dusts, mists or vapors
- Perform in a well-ventilated area
- Perform on a chemically resistant surface
- Prevent release of reagents to the environment
Class: Aqueous Equilibrium and Precipitation Reactions, Dissociation and Solubility
Division: General, Analytical Chemistry
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