Silver Nitrate and Sodium Chloride Precipitation

AgNO3 + NaCl → AgCl + NaNO3

Visão geral

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.

Participantes

Papel Substância Coeficiente Estado
Reagente Silver Nitrate AgNO₃ 1 (aq)
Reagente Sodium Chloride NaCl 1 (aq)
Produto Silver Chloride AgCl 1 (s)
Produto Sodium Nitrate NaNO₃ 1 (aq)

Exemplo do cotidiano

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

Importância industrial

Esta reação é utilizada em testes de qualidade da água, fotografia (histórica) e química analítica. O cloreto de prata é também utilizado em elétrodos de referência de prata-cloreto.

Propriedades

Tipo
Double Replacement
Reversível
Não
Energia
Exotérmico
ΔH
-65,5 kJ/mol

Reações relacionadas

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.