Ammonia and Ammonium Chloride Buffer System

NH3 + H2O ⇌ NH4+ + OH−

ภาพรวม

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.

ผู้เข้าร่วม

บทบาท สาร สัมประสิทธิ์ สถานะ
สารตั้งต้น Ammonia NH₃ 1 (aq)
สารตั้งต้น Water H₂O 1 (l)

ตัวอย่างในชีวิตประจำวัน

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

ความสำคัญทางอุตสาหกรรม

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

คุณสมบัติ

ประเภท
Acid-Base
ย้อนกลับได้
ใช่
พลังงาน
ดูดความร้อน

ปฏิกิริยาที่เกี่ยวข้อง

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) Hydrochloric Acid and Sodium Hydroxide Neutralization Nitric Acid and Potassium Hydroxide Neutralization Hydrochloric Acid and Barium 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).