Silver Nitrate and Sodium Chloride Precipitation

AgNO3 + NaCl → AgCl + NaNO3

Aperçu

Silver nitrate reacts with sodium chloride to form an insoluble white precipitate of silver chloride and soluble sodium nitrate. This is a classic precipitation reaction and the basis of the chloride ion test in analytical chemistry. The white precipitate turns purple in light due to photodecomposition.

Participants

Rôle Substance Coefficient État
Réactif Silver Nitrate AgNO₃ 1 (aq)
Réactif Sodium Chloride NaCl 1 (aq)
Produit Silver Chloride AgCl 1 (s)
Produit Sodium Nitrate NaNO₃ 1 (aq)

Exemple du quotidien

The silver chloride test for chloride ions in water analysis uses this reaction, producing a characteristic white curdy precipitate.

Importance industrielle

This reaction is used in water quality testing, photography (historical), and analytical chemistry. Silver chloride is also used in silver-chloride reference electrodes.

Propriétés

Type
Double Replacement
Réversible
Non
Énergie
Exothermique
ΔH
-65,5 kJ/mol

Réactions associées

Iron(III) Chloride and Sodium Hydroxide Ammonia and Hydrochloric Acid (White Smoke) 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 Aluminum Hydroxide and Hydrochloric Acid

Frequently Asked Questions

What is the equation for Silver Nitrate and Sodium Chloride Precipitation?
The balanced equation is: AgNO₃ + NaCl → AgCl + NaNO₃.
What type of reaction is Silver Nitrate and Sodium Chloride Precipitation?
Silver Nitrate and Sodium Chloride Precipitation is a double replacement reaction.
Is Silver Nitrate and Sodium Chloride Precipitation exothermic or endothermic?
Silver Nitrate and Sodium Chloride Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -65.5 kJ/mol.