1. Chemical Equilibria Department of Civil Engineering
California State University, Sacramento

2. Ammonia Equilibrium Relationship
Dissociation of ammonia in water:
Equilibrium relationship (square brackets indicate molar concentration):
Dissociation of water and relation of hydroxide ion concentration (OH-) to pH:

3. Ammonia Equilibrium Relationship
Concentration of ammonia as a function of total ammonia concentration and pH:
Where:

4. Ammonia Equilibrium Relationship
Equilibrium constants are a function of temperature:

5. Log Conc. -pH Diagram for Ammonia
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