Zn4(OH)44+ + 4HF2− → 4ZnF2↓ + 4H2O
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- Reaction of tetrazinc tetrahydroxide ion and hydrogendifluoride ion
- Zn4(OH)44+Tetrazinc tetrahydroxide ion + 4HF2−Hydrogendifluoride ion4ZnF2↓Zinc fluoride + 4H2OWater⟶
The reaction of tetrazinc tetrahydroxide ion and hydrogendifluoride ion yields zinc fluoride and water. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of tetrazinc tetrahydroxide ion and hydrogendifluoride ion
- Zn4(OH)44+Tetrazinc tetrahydroxide ion + 4HF2−Hydrogendifluoride ion4ZnF2↓Zinc fluoride + 4H2OWater⟶
General equation
- Reaction of cation and anion
- CationLewis acid + AnionLewis base ⟶ ProductLewis conjugate + (H2O)
- Precipitation reaction of cation and anion
- CationLewis acid + AnionLewis base ⟶ Insoluble in water/Very slightly soluble in water/Slightly soluble in waterLewis conjugate + (H2O)
Oxidation state of each atom
- Reaction of tetrazinc tetrahydroxide ion and hydrogendifluoride ion
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Zn4(OH)44+ | Tetrazinc tetrahydroxide ion | 1 | Lewis acid | Cation |
| HF2− | Hydrogendifluoride ion | 4 | Lewis base | Anion |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| ZnF2 | Zinc fluoride | 4 | Lewis conjugate | – Slightly soluble in water |
| H2O | Water | 4 | – | Water |
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 |
|---|---|---|---|---|
| Zn4(OH)44+ | – | – | – | – |
| HF2− (ao) | -649.94[1] | -578.08[1] | 92.5[1] | – |
* (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 |
|---|---|---|---|---|
| ZnF2 (cr) | -764.4[1] | -713.3[1] | 73.68[1] | 65.65[1] |
| ZnF2 (ai) | -819.14[1] | -704.64[1] | -139.7[1] | -167[1] |
| H2O (cr) | – | – | – | – |
| H2O (l) | -285.830[1] | -237.129[1] | 69.91[1] | 75.291[1] |
| H2O (g) | -241.818[1] | -228.572[1] | 188.825[1] | 33.577[1] |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (l):Liquid, (g):Gas
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°, -649.94 kJ · mol−1
- ^ ΔfG°, -578.08 kJ · mol−1
- ^ S°, 92.5 J · K−1 · mol−1
- ^ ΔfH°, -764.4 kJ · mol−1
- ^ ΔfG°, -713.3 kJ · mol−1
- ^ S°, 73.68 J · K−1 · mol−1
- ^ Cp°, 65.65 J · K−1 · mol−1
- ^ ΔfH°, -819.14 kJ · mol−1
- ^ ΔfG°, -704.64 kJ · mol−1
- ^ S°, -139.7 J · K−1 · mol−1
- ^ Cp°, -167. J · K−1 · mol−1
- ^ ΔfH°, -285.830 kJ · mol−1
- ^ ΔfG°, -237.129 kJ · mol−1
- ^ S°, 69.91 J · K−1 · mol−1
- ^ Cp°, 75.291 J · K−1 · mol−1
- ^ ΔfH°, -241.818 kJ · mol−1
- ^ ΔfG°, -228.572 kJ · mol−1
- ^ S°, 188.825 J · K−1 · mol−1
- ^ Cp°, 33.577 J · K−1 · mol−1