Lead Displacing Silver from Silver Nitrate
Pb + 2AgNO3 → Pb(NO3)2 + 2Ag
Übersicht
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.
Teilnehmer
| Rolle | Substanz | Koeffizient | Zustand |
|---|---|---|---|
| Reaktant | Lead Pb | 1 | (s) |
| Reaktant | Silver Nitrate AgNO₃ | 2 | (aq) |
| Produkt | Silver Ag | 2 | (s) |
Alltägliches Beispiel
Jewelers and assayers historically used lead to test silver purity, exploiting the differences in metal reactivity.
Industrielle Bedeutung
Lead cementation was used in historical silver refining processes. Understanding metal displacement is essential for designing electrochemical cells.
Eigenschaften
- Reversibel
- Nein
- Energie
- Exotherm
- ΔH
- -132,0 kJ/mol
Verwandte Reaktionen
Magnesium Reacting with Steam
Lithium Reacting with Water
Aluminum Reducing Chromium Oxide (Aluminothermic)
Iron Reacting with Hydrochloric Acid
Iron Displacing Copper from Copper Sulfate
Magnesium Reacting with Hydrochloric Acid
Copper Displacing Silver from Silver Nitrate
Iron Reacting with Copper(II) Chloride
Magnesium Reacting with Sulfuric Acid
Chlorine Displacing Iodine from Potassium Iodide
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.