Description: When an acidic amino acid solution is titrated with a base, the resulting curve can be used to determine the pKa values of the amino acid.

Source: Kristen Johnson

Year: 1999 Vol: N/A Page: N/A

Keywords: Amino Acid, pKa value, Titration, Base

Rating:

Hazard: Some

Electric shock hazard
Acute toxicity hazard
Skin corrosion hazard
Aquatic toxicity hazard
Corrosive to metals

Effectiveness: Average

Results are observable with guidance
Mild effects are seen by audience
Secondary observations
Time to result is medium

Difficulty: High

Experiments in which data recording and display are necessary
Multi-step procedures with varying results depending on order or amount of reaction
Demos require training or extended practice
Use of scientific equipment

Safety Precautions:

Eye protection required
Gloves required
Use of UL approved three-prong plug and outlet
Absorbent materials on hand
Sodium bicarbonate on hand
Avoid exposure to mists or droplets
Prevent release of reagents to the environment

Class: Biochemistry, Acids and Bases, Equilibrium

Division: General, Analytical Chemistry, Physical Chemistry

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