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Chemical Equilibria. Department of Civil Engineering California State University, Sacramento. Ammonia Equilibrium Relationship. Dissociation of ammonia in water: Equilibrium relationship (square brackets indicate molar concentration):
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Chemical Equilibria Department of Civil Engineering California State University, Sacramento
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:
Ammonia Equilibrium Relationship Concentration of ammonia as a function of total ammonia concentration and pH: Where:
Ammonia Equilibrium Relationship Equilibrium constants are a function of temperature:
pH Log10 Conc. Log Conc. -pH Diagram for Ammonia Return