Acids and Bases- Acidic and Basic Properties of Salts

Acidic and Basic Properties of Salts

Description: The pH of salt solutions is estimated using universal indicator. A pH meter can also be used.

Source: Shakhashiri, B.Z.  Chemical Demonstrations: A Handbook for Teachers of Chemistry

Year: 1989   Vol: 3   Page: 103

Keywords: Hydrolysis, Salts, Acidic, Basic, Overhead projector

Rating:

Hazard: Medium

• Acute toxicity hazard – oral
• Aquatic toxicity hazard
• Inhalation hazard
• Electric shock hazard
• Oxidizing solids
• Skin corrosion hazard
• Corrosive to metals
• Serious eye damage
• Germ cell mutagenicity hazard
• Reproductive toxicity hazard

Effectiveness: Average

• Results are observable with guidance
• Secondary effects are seen by audience
• Secondary observations are made
• Good connection from demo to course material
• Time to results is high
• Mild effects are seen by audience

Difficulty: High

• Potential for cross-contamination
• Potential for probe damage
• Complex lab equipment manipulations
• Repetitive equipment manipulations
• Experiment in which data recording and display are necessary
• Multi-step procedures

Safety Precautions:

• UL approved three-prong plug and outlet required
• Eye protection required
• Gloves required
• Absorbent material on hand
• Sodium bicarbonate on hand
• Prevent release of reagents to the environment

Class: Acids and Bases, Properties of Ionic Salts, Indicators

Division: General

Home