H2[PtCl6] + Ni(OH)2 → PtCl4 + NiCl2 + 2H2O
Last updated:
The reaction of hexachloridoplatinic(IV) acid and nickel(II) hydroxide yields platinum(IV) chloride, nickel(II) chloride, and water. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of hexachloridoplatinic(IV) acid and nickel(II) hydroxide
General equation
- Reaction of acid and base
- AcidBrønsted acid + BaseBrønsted base ⟶ SaltConjugate base + (H2O)(Conjugate acid)
- Reaction of acid and hydroxide base
- AcidBrønsted acid + Hydroxide baseBrønsted base ⟶ SaltConjugate base + H2OConjugate acid
- Reaction of strong acid and weak base
- Strong acidBrønsted acid + Weak baseBrønsted base ⟶ Salt of strong acid and weak baseConjugate base + (H2O)(Conjugate acid)
Oxidation state of each atom
- Reaction of hexachloridoplatinic(IV) acid and nickel(II) hydroxide
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| H2[PtCl6] | Hexachloridoplatinic(IV) acid | 1 | Brønsted acid | Acid Strong acid |
| Ni(OH)2 | Nickel(II) hydroxide | 1 | Brønsted base | Base Hydroxide base Weak base |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| PtCl4 | Platinum(IV) chloride | 1 | Conjugate base | Salt Salt of strong acid and weak base |
| NiCl2 | Nickel(II) chloride | 1 | Conjugate base | Salt Salt of strong acid and weak base |
| H2O | Water | 2 | Conjugate acid | Water |
Thermodynamic changes
Changes in aqueous solution
- Reaction of hexachloridoplatinic(IV) acid and nickel(II) hydroxide
| Standard enthalpy of reaction ΔrH° kJ · mol−1 | Standard Gibbs energy of reaction ΔrG° kJ · mol−1 | Standard entropy of reaction ΔrS° J · K−1 · mol−1 | Standard heat capacity of reaction at constant pressure ΔrCp° J · K−1 · mol−1 | |
|---|---|---|---|---|
per 1 mol of Equation | −76.3 | – | – | – |
per 1 mol of | −76.3 | – | – | – |
per 1 mol of | −76.3 | – | – | – |
per 1 mol of | −76.3 | – | – | – |
per 1 mol of | −76.3 | – | – | – |
per 1 mol of | −38.1 | – | – | – |
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 |
|---|---|---|---|---|
| H2[PtCl6] (ai) | -668.2[1] | -482.7[1] | 219.7[1] | – |
| H2[PtCl6] (cr) 6 hydrate | -2371.1[1] | – | – | – |
| Ni(OH)2 (cr) | -529.7[1] | -447.2[1] | 88[1] | – |
| Ni(OH)2 (ai) | -513.8[1] | -360.2[1] | -150.2[1] | – |
* (ai):Ionized aqueous solution, (cr):Crystalline solid
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 |
|---|---|---|---|---|
| PtCl4 (cr) | -231.8[1] | – | – | – |
| PtCl4 (aq) | -314.2[1] | – | – | – |
| PtCl4 (cr) 5 hydrate | -1752.7[1] | – | – | – |
| NiCl2 (cr) | -305.332[1] | -259.032[1] | 97.65[1] | 71.67[1] |
| NiCl2 (ai) | -388.3[1] | -307.9[1] | -15.1[1] | – |
| NiCl2 (cr) 2 hydrate | -922.2[1] | -760.1[1] | 176[1] | – |
| NiCl2 (cr) 4 hydrate | -1516.7[1] | -1234.9[1] | 243[1] | – |
| NiCl2 (cr) 6 hydrate | -2103.17[1] | -1713.19[1] | 344.3[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, (aq):Aqueous solution, (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°, -668.2 kJ · mol−1
- ^ ΔfG°, -482.7 kJ · mol−1
- ^ S°, 219.7 J · K−1 · mol−1
- ^ ΔfH°, -2371.1 kJ · mol−1
- ^ ΔfH°, -529.7 kJ · mol−1
- ^ ΔfG°, -447.2 kJ · mol−1
- ^ S°, 88. J · K−1 · mol−1
- ^ ΔfH°, -513.8 kJ · mol−1
- ^ ΔfG°, -360.2 kJ · mol−1
- ^ S°, -150.2 J · K−1 · mol−1
- ^ ΔfH°, -231.8 kJ · mol−1
- ^ ΔfH°, -314.2 kJ · mol−1
- ^ ΔfH°, -1752.7 kJ · mol−1
- ^ ΔfH°, -305.332 kJ · mol−1
- ^ ΔfG°, -259.032 kJ · mol−1
- ^ S°, 97.65 J · K−1 · mol−1
- ^ Cp°, 71.67 J · K−1 · mol−1
- ^ ΔfH°, -388.3 kJ · mol−1
- ^ ΔfG°, -307.9 kJ · mol−1
- ^ S°, -15.1 J · K−1 · mol−1
- ^ ΔfH°, -922.2 kJ · mol−1
- ^ ΔfG°, -760.1 kJ · mol−1
- ^ S°, 176. J · K−1 · mol−1
- ^ ΔfH°, -1516.7 kJ · mol−1
- ^ ΔfG°, -1234.9 kJ · mol−1
- ^ S°, 243. J · K−1 · mol−1
- ^ ΔfH°, -2103.17 kJ · mol−1
- ^ ΔfG°, -1713.19 kJ · mol−1
- ^ S°, 344.3 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