3Hg + H2[PtCl6] → 3HgCl2 + Pt + H2↑
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- Reaction of and hexachloridoplatinic(IV) acid
The reaction of and hexachloridoplatinic(IV) acid yields mercury(II) chloride, , and (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of and hexachloridoplatinic(IV) acid
General equation
- Reaction of oxidizable species and oxidizing species
- Oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of and hexachloridoplatinic(IV) acid
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
3 | Reducing | Oxidizable | ||
H2[PtCl6] | Hexachloridoplatinic(IV) acid | 1 | Oxidizing | Oxidizing |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
HgCl2 | Mercury(II) chloride | 3 | Oxidized | – |
1 | Reduced | – | ||
1 | Reduced | – |
Thermodynamic changes
Changes in aqueous solution (1)
- Reaction of and hexachloridoplatinic(IV) acid◆
ΔrG −154.8 kJ/mol K 1.32 × 1027 pK −27.12
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 | −93.8 | −154.8 | 205 | – |
−31.3 | −51.60 | 68.3 | – | |
per 1 mol of | −93.8 | −154.8 | 205 | – |
per 1 mol of | −31.3 | −51.60 | 68.3 | – |
−93.8 | −154.8 | 205 | – | |
−93.8 | −154.8 | 205 | – |
Changes in aqueous solution (2)
- Reaction of and hexachloridoplatinic(IV) acid◆
ΔrG −137.2 kJ/mol K 1.09 × 1024 pK −24.04
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 | −98.0 | −137.2 | 651 | – |
−32.7 | −45.73 | 217 | – | |
per 1 mol of | −98.0 | −137.2 | 651 | – |
per 1 mol of | −32.7 | −45.73 | 217 | – |
−98.0 | −137.2 | 651 | – | |
−98.0 | −137.2 | 651 | – |
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 |
---|---|---|---|---|
(cr) | – | – | – | – |
(l) | 0[1] | 0[1] | 76.02[1] | 27.983[1] |
(g) | 61.317[1] | 31.820[1] | 174.96[1] | 20.786[1] |
(ao) | 37.7[1] | 39.3[1] | 71[1] | – |
H2[PtCl6] (ai) | -668.2[1] | -482.7[1] | 219.7[1] | – |
H2[PtCl6] (cr) 6 hydrate | -2371.1[1] | – | – | – |
* (cr):Crystalline solid, (l):Liquid, (g):Gas, (ao):Un-ionized aqueous solution, (ai):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 |
---|---|---|---|---|
HgCl2 (cr) | -224.3[1] | -178.6[1] | 146.0[1] | – |
HgCl2 (ao) | -216.3[1] | -173.2[1] | 155[1] | – |
(cr) | 0[1] | 0[1] | 41.63[1] | 25.86[1] |
(g) | 565.3[1] | 520.5[1] | 192.406[1] | 25.531[1] |
(g) | 0[1] | 0[1] | 130.684[1] | 28.824[1] |
(ao) | -4.2[1] | 17.6[1] | 577[1] | – |
* (cr):Crystalline solid, (ao):Un-ionized aqueous solution, (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°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 76.02 J · K−1 · mol−1
- ^ Cp°, 27.983 J · K−1 · mol−1
- ^ ΔfH°, 61.317 kJ · mol−1
- ^ ΔfG°, 31.820 kJ · mol−1
- ^ S°, 174.96 J · K−1 · mol−1
- ^ Cp°, 20.786 J · K−1 · mol−1
- ^ ΔfH°, 37.7 kJ · mol−1
- ^ ΔfG°, 39.3 kJ · mol−1
- ^ S°, 71. J · K−1 · mol−1
- ^ 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°, -224.3 kJ · mol−1
- ^ ΔfG°, -178.6 kJ · mol−1
- ^ S°, 146.0 J · K−1 · mol−1
- ^ ΔfH°, -216.3 kJ · mol−1
- ^ ΔfG°, -173.2 kJ · mol−1
- ^ S°, 155. J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 41.63 J · K−1 · mol−1
- ^ Cp°, 25.86 J · K−1 · mol−1
- ^ ΔfH°, 565.3 kJ · mol−1
- ^ ΔfG°, 520.5 kJ · mol−1
- ^ S°, 192.406 J · K−1 · mol−1
- ^ Cp°, 25.531 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 130.684 J · K−1 · mol−1
- ^ Cp°, 28.824 J · K−1 · mol−1
- ^ ΔfH°, -4.2 kJ · mol−1
- ^ ΔfG°, 17.6 kJ · mol−1
- ^ S°, 577 J · K−1 · mol−1