Ammonia and Hydrochloric Acid (White Smoke)

NH₃ + HCl → NH₄Cl

ภาพรวม

Ammonia gas reacts with hydrogen chloride gas to form white fumes of ammonium chloride solid. This dramatic reaction occurs when concentrated ammonia and hydrochloric acid bottles are placed near each other, as the vapors meet in air and create a white smoke cloud.

ผู้เข้าร่วม

บทบาท	สาร	สัมประสิทธิ์	สถานะ
สารตั้งต้น	Ammonia NH₃	1	(g)
สารตั้งต้น	Hydrochloric Acid HCl	1	(g)

ตัวอย่างในชีวิตประจำวัน

The white smoke that forms when bottles of ammonia and HCl are opened near each other is one of the most striking gas-phase chemistry demonstrations.

ความสำคัญทางอุตสาหกรรม

Ammonium chloride is used in soldering flux, in zinc-carbon batteries, as a nitrogen fertilizer, and in cough medicine formulations.

คุณสมบัติ

ประเภท: Double Replacement
ย้อนกลับได้: ใช่
พลังงาน: คายความร้อน
ΔH: -176.0 kJ/mol

ปฏิกิริยาที่เกี่ยวข้อง

Iron(III) Chloride and Sodium Hydroxide Calcium Carbonate and Hydrochloric Acid Calcium Chloride and Sodium Carbonate Barium Chloride and Sodium Sulfate Precipitation Calcium Hydroxide and Carbon Dioxide (Limewater Test) Sodium Hydroxide and Iron(III) Chloride (Rust Color) Sodium Hydroxide and Hydrochloric Acid Neutralization Potassium Hydroxide and Sulfuric Acid Sodium Carbonate and Hydrochloric Acid Aluminum Hydroxide and Hydrochloric Acid

Frequently Asked Questions

What is the equation for Ammonia and Hydrochloric Acid (White Smoke)?

The balanced equation is: NH₃ + HCl → NH₄Cl.

What type of reaction is Ammonia and Hydrochloric Acid (White Smoke)?

Ammonia and Hydrochloric Acid (White Smoke) is a double replacement reaction. It is reversible under certain conditions.

Is Ammonia and Hydrochloric Acid (White Smoke) exothermic or endothermic?

Ammonia and Hydrochloric Acid (White Smoke) is exothermic (releases energy). The enthalpy change (ΔH) is -176.0 kJ/mol.