Ammonia and Ammonium Chloride Buffer System

NH3 + H2O ⇌ NH4+ + OH−

Ikhtisar

The ammonia/ammonium buffer system maintains pH near 9.25 (the pKb of ammonia corresponds to pKa of NH₄⁺ = 9.25). Ammonia acts as a weak base accepting protons when acid is added, while ammonium ions donate protons when base is added. This is one of the most commonly used basic buffer systems.

Peserta

Peran Zat Koefisien Keadaan
Reaktan Ammonia NH₃ 1 (aq)
Reaktan Water H₂O 1 (l)

Contoh Sehari-hari

Ammonia-based cleaning solutions maintain their effectiveness because the NH₃/NH₄⁺ buffer system keeps the pH in the basic range.

Pentingnya dalam Industri

Ammonia buffers are used in analytical chemistry, in electroplating baths, and in biological research for maintaining basic pH conditions.

Sifat

Jenis
Acid-Base
Dapat Dibalik
Ya
Energi
Endoterm

Reaksi Terkait

Hydrochloric Acid and Barium Hydroxide Acetic Acid and Sodium Acetate Buffer System Acetic Acid Dissociation in Water Ammonia and Hydrochloric Acid Ascorbic Acid and Sodium Hydroxide Barium Hydroxide and Ammonium Thiocyanate (Endothermic) Carbonic Acid and Sodium Hydroxide Aluminum Hydroxide as Amphoteric Acid with NaOH Aluminum Chloride and Chloride Ion (Lewis Acid-Base) Formic Acid and Sodium Hydroxide

Frequently Asked Questions

What is the equation for Ammonia and Ammonium Chloride Buffer System?
The balanced equation is: NH₃ + H₂O ⇌ NH₄⁺ + OH⁻.
What type of reaction is Ammonia and Ammonium Chloride Buffer System?
Ammonia and Ammonium Chloride Buffer System is a acid-base reaction. It is reversible under certain conditions.
Is Ammonia and Ammonium Chloride Buffer System exothermic or endothermic?
Ammonia and Ammonium Chloride Buffer System is endothermic (absorbs energy).