8Ni2+ + 4[Ni(OH)3]− → 3Ni4(OH)44+
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- Reaction of nickel(II) ion and trihydroxidonickelate(II) ion
- 8Ni2+Nickel(II) ion + 4[Ni(OH)3]−Trihydroxidonickelate(II) ion3Ni4(OH)44+Tetranickel(II) tetrahydroxide ion⟶
The reaction of nickel(II) ion and trihydroxidonickelate(II) ion yields tetranickel(II) tetrahydroxide 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 nickel(II) ion and trihydroxidonickelate(II) ion
- 8Ni2+Nickel(II) ion + 4[Ni(OH)3]−Trihydroxidonickelate(II) ion3Ni4(OH)44+Tetranickel(II) tetrahydroxide ion⟶
General equation
- Reaction of cation and anion
- CationLewis acid + AnionLewis base ⟶ ProductLewis conjugate + (H2O)
Oxidation state of each atom
- Reaction of nickel(II) ion and trihydroxidonickelate(II) ion
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Ni2+ | Nickel(II) ion | 8 | Lewis acid | Cation |
| [Ni(OH)3]− | Trihydroxidonickelate(II) ion | 4 | Lewis base | Anion |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Ni4(OH)44+ | Tetranickel(II) tetrahydroxide ion | 3 | Lewis conjugate | – |
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 |
|---|---|---|---|---|
| Ni2+ (g) | 2931.390[1] | – | – | – |
| Ni2+ (ao) | -54.0[1] | -45.6[1] | -128.9[1] | – |
| [Ni(OH)3]− | – | – | – | – |
* (g):Gas, (ao):Un-ionized aqueous solution
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 |
|---|---|---|---|---|
| Ni4(OH)44+ | – | – | – | – |
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)