Copper Reduction of Silver Ion
Cu + 2Ag+ → Cu2+ + 2Ag
Ikhtisar
Copper metal reduces silver ions to metallic silver while being oxidized to Cu²⁺. Silver deposits on the copper surface in beautiful dendritic crystal formations. The cell potential of +0.46 V (E°(Ag⁺/Ag) - E°(Cu²⁺/Cu) = 0.80 - 0.34) drives this spontaneous reaction.
Peserta
| Peran | Zat | Koefisien | Keadaan |
|---|---|---|---|
| Reaktan | Copper Cu | 1 | (s) |
| Reaktan | Silver Nitrate AgNO₃ | 2 | (aq) |
| Produk | Silver Ag | 2 | (s) |
Contoh Sehari-hari
The silver tree experiment, where a copper wire in silver nitrate solution grows beautiful silver crystal dendrites, is a popular science demonstration.
Pentingnya dalam Industri
Silver cementation by copper is used in silver recovery from photographic and electronic waste solutions.
Sifat
- Jenis
- Redox
- Dapat Dibalik
- Tidak
- Energi
- Eksoterm
- ΔH
- -146,4 kJ/mol
Reaksi Terkait
Iron(II) to Iron(III) Oxidation by Oxygen
Bleaching with Sodium Hypochlorite
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
Iodine and Sodium Thiosulfate Titration
Displacement of Hydrogen from Acid by Magnesium
Frequently Asked Questions
What is the equation for Copper Reduction of Silver Ion?
The balanced equation is: Cu + 2Ag⁺ → Cu²⁺ + 2Ag.
What type of reaction is Copper Reduction of Silver Ion?
Copper Reduction of Silver Ion is a redox reaction.
Is Copper Reduction of Silver Ion exothermic or endothermic?
Copper Reduction of Silver Ion is exothermic (releases energy). The enthalpy change (ΔH) is -146.4 kJ/mol.