Heat of Neutralization
Description: Equal quantities of six molar solutions of HCl & NaOH are mixed. The change in temperature is measured with a large read-out digital thermometer.
Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry
Year: 1983 Vol: 1 Page: 15
Keywords: HCl, NaOH, Digital thermometer, Neutralization
Ratings:
Hazard: Some
- Inhalation hazard
- Skin corrosion hazard
- Corrosive to metals
- Acute toxicity hazard
- Aquatic toxicity hazard
- Electric shock hazard
Effectiveness: Average
- Secondary observations
- Good connection from demo to course material
- Time to results is low
- High reliability
Difficulty: Medium
- Simple procedures
- Simple manipulations for most to perform
- Demos in which remote display is required
- Some intermediate steps to results
Safety Precautions:
- Hot gloves required
- Eye protection required
- Lab coat recommended
- Absorbent material on hand
- Sodium bicarbonate on hand
- UL approved three-prong plug and outlet
- Chemically resistant surface required
- Perform in a well-ventilated area
- Avoid inhalation of fumes or vapors
- Prevent release of reagents to the environment
Class: Thermochemistry, Acids and Bases. Neutralization
Division: General
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