Lead Displacing Silver from Silver Nitrate

Pb + 2AgNO₃ → Pb(NO₃)₂ + 2Ag

Visão geral

Lead metal displaces silver from silver nitrate solution, demonstrating that lead is more reactive than silver. Silver crystals deposit on the lead surface as shiny metallic needles. This was historically used in silver assaying and recovery processes.

Participantes

Papel	Substância	Coeficiente	Estado
Reagente	Lead Pb	1	(s)
Reagente	Silver Nitrate AgNO₃	2	(aq)
Produto	Silver Ag	2	(s)

Exemplo do cotidiano

Jewelers and assayers historically used lead to test silver purity, exploiting the differences in metal reactivity.

Importância industrial

A cementação com chumbo foi usada nos processos históricos de refinação de prata. A compreensão do deslocamento de metais é essencial para conceber células electroquímicas e processos hidrometalúrgicos.

Propriedades

Tipo: Single Replacement
Reversível: Não
Energia: Exotérmico
ΔH: -132,0 kJ/mol

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Frequently Asked Questions

What is the equation for Lead Displacing Silver from Silver Nitrate?

The balanced equation is: Pb + 2AgNO₃ → Pb(NO₃)₂ + 2Ag.

What type of reaction is Lead Displacing Silver from Silver Nitrate?

Lead Displacing Silver from Silver Nitrate is a single replacement reaction.

Is Lead Displacing Silver from Silver Nitrate exothermic or endothermic?

Lead Displacing Silver from Silver Nitrate is exothermic (releases energy). The enthalpy change (ΔH) is -132.0 kJ/mol.