Cd(OH)2 + OH− → [Cd(OH)3]−
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- Reaction of cadmium hydroxide and hydroxide ion
The reaction of cadmium hydroxide and hydroxide ion yields trihydroxidocadminate ion (Other reactions are here). This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of cadmium hydroxide and hydroxide ion
General equation
- Reaction of neutral species and anion
- CompoundLewis acid + AnionLewis base ⟶ AnionLewis conjugate
Oxidation state of each atom
- Reaction of cadmium hydroxide and hydroxide ion
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Cd(OH)2 | Cadmium hydroxide | 1 | Lewis acid | Compound |
| OH− | Hydroxide ion | 1 | Lewis base | Anion |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| [Cd(OH)3]− | Trihydroxidocadminate ion | 1 | Lewis conjugate | Anion |
Thermodynamic changes
Thermodynamic data of reactants
| Chemical formula | Standard enthalpy of formation ΔfH° kJ · mol−1 | Standard Gibbs energy of formation ΔfG° kJ · mol−1 | Standard molar entropy S° J · K−1 · mol−1 | Standard molar heat capacity at constant pressure Cp° J · K−1 · mol−1 |
|---|---|---|---|---|
| Cd(OH)2 (cr) precipitated | -560.7[1] | -473.6[1] | 96[1] | – |
| Cd(OH)2 (ai) | -535.89[1] | -392.10[1] | -94.6[1] | – |
| Cd(OH)2 (ao) | – | -442.6[1] | – | – |
| OH− (g) | -143.5[1] | – | – | – |
| OH− (ao) | -229.994[1] | -157.244[1] | -10.75[1] | -148.5[1] |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution, (g):Gas
Thermodynamic data of products
| Chemical formula | Standard enthalpy of formation ΔfH° kJ · mol−1 | Standard Gibbs energy of formation ΔfG° kJ · mol−1 | Standard molar entropy S° J · K−1 · mol−1 | Standard molar heat capacity at constant pressure Cp° J · K−1 · mol−1 |
|---|---|---|---|---|
| [Cd(OH)3]− | – | – | – | – |
References
List of references
- 1Janiel J. Reed (1989)The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI UnitsNational Institute of Standards and Technology (NIST)
- ^ ΔfH°, -560.7 kJ · mol−1
- ^ ΔfG°, -473.6 kJ · mol−1
- ^ S°, 96. J · K−1 · mol−1
- ^ ΔfH°, -535.89 kJ · mol−1
- ^ ΔfG°, -392.10 kJ · mol−1
- ^ S°, -94.6 J · K−1 · mol−1
- ^ ΔfG°, -442.6 kJ · mol−1
- ^ ΔfH°, -143.5 kJ · mol−1
- ^ ΔfH°, -229.994 kJ · mol−1
- ^ ΔfG°, -157.244 kJ · mol−1
- ^ S°, -10.75 J · K−1 · mol−1
- ^ Cp°, -148.5 J · K−1 · mol−1