Zinc Reduction of Silver Ion
Zn + 2Ag+ → Zn2+ + 2Ag
Visão geral
Zinc reduces silver ions to metallic silver with a large cell potential of +1.56 V. Zinc is oxidized from 0 to +2 while silver is reduced from +1 to 0. This reaction proceeds vigorously due to the large potential difference between zinc and silver electrodes.
Participantes
| Papel | Substância | Coeficiente | Estado |
|---|---|---|---|
| Reagente | Zinc Zn | 1 | (s) |
| Reagente | Silver Nitrate AgNO₃ | 2 | (aq) |
| Produto | Silver Ag | 2 | (s) |
Exemplo do cotidiano
Zinc's strong reducing power is exploited in zinc-silver oxide button cell batteries used in watches, hearing aids, and calculators.
Importância industrial
As baterias de óxido de prata-zinco fornecem alta densidade energética para dispositivos eletrónicos miniatura. A recuperação de prata a partir de resíduos utiliza cementação com zinco.
Propriedades
- Tipo
- Redox
- Reversível
- Não
- Energia
- Exotérmico
- ΔH
- -310,0 kJ/mol
Reações relacionadas
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Bleaching with Sodium Hypochlorite
Copper Reduction of Silver Ion
Aqua Regia Dissolving Gold
Cerium(IV) Reduction by Iron(II)
Copper Oxidation by Nitric Acid
Hypochlorite Oxidation of Hydrogen Peroxide
Hydrogen Peroxide as Oxidizing Agent (Acidic)
Hydrogen Peroxide Disproportionation
Displacement of Hydrogen from Acid by Magnesium
Frequently Asked Questions
What is the equation for Zinc Reduction of Silver Ion?
The balanced equation is: Zn + 2Ag⁺ → Zn²⁺ + 2Ag.
What type of reaction is Zinc Reduction of Silver Ion?
Zinc Reduction of Silver Ion is a redox reaction.
Is Zinc Reduction of Silver Ion exothermic or endothermic?
Zinc Reduction of Silver Ion is exothermic (releases energy). The enthalpy change (ΔH) is -310.0 kJ/mol.