8NaCl + 5Na2MnO4 + 24H+ → 18Na+ + 4ClO2↑ + 2MnCl2 + 3Mn2+ + 12H2O
Last updated:
- Reaction of sodium chloride and sodium manganate under acidic condition
- 8NaClSodium chloride + 5Na2MnO4Sodium manganate + 24H+Hydrogen ion18Na+Sodium ion + 4ClO2↑Chlorine dioxide + 2MnCl2Manganese(II) chloride + 3Mn2+Manganese(II) ion + 12H2OWater⟶
The reaction of sodium chloride, sodium manganate, and hydrogen ion yields sodium ion, chlorine dioxide, manganese(II) chloride, manganese(II) ion, and water (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 sodium chloride and sodium manganate under acidic condition
- 8NaClSodium chloride + 5Na2MnO4Sodium manganate + 24H+Hydrogen ion18Na+Sodium ion + 4ClO2↑Chlorine dioxide + 2MnCl2Manganese(II) chloride + 3Mn2+Manganese(II) ion + 12H2OWater⟶
General equation
- Reaction of hardly oxidizable species and oxidizing species under acidic condition
- Hardly oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H+Non-redox agent ⟶ ProductOxidation product + ProductReduction product + H2ONon-redox product
Oxidation state of each atom
- Reaction of sodium chloride and sodium manganate under acidic condition
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| NaCl | Sodium chloride | 8 | Reducing | Hardly oxidizable |
| Na2MnO4 | Sodium manganate | 5 | Oxidizing | Oxidizing under acidic condition |
| H+ | Hydrogen ion | 24 | – | Hydrogen ion |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Na+ | Sodium ion | 18 | – | – |
| ClO2 | Chlorine dioxide | 4 | Oxidized | – |
| MnCl2 | Manganese(II) chloride | 2 | Reduced | – |
| Mn2+ | Manganese(II) ion | 3 | Reduced | – |
| H2O | Water | 12 | – | Water |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of sodium chloride and sodium manganate under acidic condition◆
ΔrG −475.7 kJ/mol K 2.18 × 1083 pK −83.34
| 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 | −186 | −475.7 | 981 | – |
per 1 mol of | −23.3 | −59.46 | 123 | – |
per 1 mol of | −37.2 | −95.14 | 196 | – |
per 1 mol of Hydrogen ion | −7.75 | −19.82 | 40.9 | – |
per 1 mol of Sodium ion | −10.3 | −26.43 | 54.5 | – |
per 1 mol of | −46.5 | −118.9 | 245 | – |
per 1 mol of | −93.0 | −237.8 | 491 | – |
per 1 mol of Manganese(II) ion | −62.0 | −158.6 | 327 | – |
per 1 mol of | −15.5 | −39.64 | 81.8 | – |
Changes in standard condition (2)
- Reaction of sodium chloride and sodium manganate under acidic condition◆
ΔrG −478.1 kJ/mol K 5.75 × 1083 pK −83.76
| 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 | – | −478.1 | – | – |
per 1 mol of | – | −59.76 | – | – |
per 1 mol of | – | −95.62 | – | – |
per 1 mol of Hydrogen ion | – | −19.92 | – | – |
per 1 mol of Sodium ion | – | −26.56 | – | – |
per 1 mol of | – | −119.5 | – | – |
per 1 mol of | – | −239.1 | – | – |
per 1 mol of Manganese(II) ion | – | −159.4 | – | – |
per 1 mol of | – | −39.84 | – | – |
Changes in standard condition (3)
- Reaction of sodium chloride and sodium manganate under acidic condition◆
ΔrG −477.3 kJ/mol K 4.16 × 1083 pK −83.62
| 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 | −297 | −477.3 | 613 | – |
per 1 mol of | −37.1 | −59.66 | 76.6 | – |
per 1 mol of | −59.4 | −95.46 | 123 | – |
per 1 mol of Hydrogen ion | −12.4 | −19.89 | 25.5 | – |
per 1 mol of Sodium ion | −16.5 | −26.52 | 34.1 | – |
per 1 mol of | −74.3 | −119.3 | 153 | – |
per 1 mol of | −149 | −238.7 | 307 | – |
per 1 mol of Manganese(II) ion | −99.0 | −159.1 | 204 | – |
per 1 mol of | −24.8 | −39.77 | 51.1 | – |
Changes in standard condition (4)
- Reaction of sodium chloride and sodium manganate under acidic condition◆
ΔrG −479.7 kJ/mol K 1.10 × 1084 pK −84.04
| 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 | – | −479.7 | – | – |
per 1 mol of | – | −59.96 | – | – |
per 1 mol of | – | −95.94 | – | – |
per 1 mol of Hydrogen ion | – | −19.99 | – | – |
per 1 mol of Sodium ion | – | −26.65 | – | – |
per 1 mol of | – | −119.9 | – | – |
per 1 mol of | – | −239.8 | – | – |
per 1 mol of Manganese(II) ion | – | −159.9 | – | – |
per 1 mol of | – | −39.98 | – | – |
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 |
|---|---|---|---|---|
| NaCl (cr) | -411.153[1] | -384.138[1] | 72.13[1] | 50.50[1] |
| NaCl (g) | -176.65[1] | -196.66[1] | 229.81[1] | 35.77[1] |
| NaCl (ai) | -407.27[1] | -393.133[1] | 115.5[1] | -90.0[1] |
| Na2MnO4 (cr) | -1156.0[1] | – | – | – |
| Na2MnO4 (ai) | -1134[1] | -1024.6[1] | 176[1] | – |
| H+ (g) | 1536.202[1] | – | – | – |
| H+ (ao) | 0[1] | 0[1] | 0[1] | 0[1] |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (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 |
|---|---|---|---|---|
| Na+ (g) | 609.358[1] | – | – | – |
| Na+ (ao) | -240.12[1] | -261.905[1] | 59.0[1] | 46.4[1] |
| ClO2 (g) | 102.5[1] | 120.5[1] | 256.84[1] | 41.97[1] |
| ClO2 (ao) | 74.9[1] | 120.1[1] | 164.8[1] | – |
| MnCl2 (cr) | -481.29[1] | -440.50[1] | 118.24[1] | 72.93[1] |
| MnCl2 (g) | -263.6[1] | – | – | – |
| MnCl2 (ai) | -555.05[1] | -490.8[1] | 38.9[1] | -222[1] |
| MnCl2 (ao) | – | -492.0[1] | – | – |
| MnCl2 (cr) 1 hydrate | -789.9[1] | -696.1[1] | 174.1[1] | – |
| MnCl2 (cr) 2 hydrate | -1092.0[1] | -942.1[1] | 218.8[1] | – |
| MnCl2 (cr) 4 hydrate | -1687.4[1] | -1423.6[1] | 303.3[1] | – |
| Mn2+ (g) | 2519.69[1] | – | – | – |
| Mn2+ (ao) | -220.75[1] | -228.1[1] | -73.6[1] | 50[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] |
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid, (ai):Ionized aqueous solution, (l):Liquid
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°, -411.153 kJ · mol−1
- ^ ΔfG°, -384.138 kJ · mol−1
- ^ S°, 72.13 J · K−1 · mol−1
- ^ Cp°, 50.50 J · K−1 · mol−1
- ^ ΔfH°, -176.65 kJ · mol−1
- ^ ΔfG°, -196.66 kJ · mol−1
- ^ S°, 229.81 J · K−1 · mol−1
- ^ Cp°, 35.77 J · K−1 · mol−1
- ^ ΔfH°, -407.27 kJ · mol−1
- ^ ΔfG°, -393.133 kJ · mol−1
- ^ S°, 115.5 J · K−1 · mol−1
- ^ Cp°, -90.0 J · K−1 · mol−1
- ^ ΔfH°, -1156.0 kJ · mol−1
- ^ ΔfH°, -1134. kJ · mol−1
- ^ ΔfG°, -1024.6 kJ · mol−1
- ^ S°, 176. J · K−1 · mol−1
- ^ ΔfH°, 1536.202 kJ · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 0 J · K−1 · mol−1
- ^ Cp°, 0 J · K−1 · mol−1
- ^ ΔfH°, 609.358 kJ · mol−1
- ^ ΔfH°, -240.12 kJ · mol−1
- ^ ΔfG°, -261.905 kJ · mol−1
- ^ S°, 59.0 J · K−1 · mol−1
- ^ Cp°, 46.4 J · K−1 · mol−1
- ^ ΔfH°, 102.5 kJ · mol−1
- ^ ΔfG°, 120.5 kJ · mol−1
- ^ S°, 256.84 J · K−1 · mol−1
- ^ Cp°, 41.97 J · K−1 · mol−1
- ^ ΔfH°, 74.9 kJ · mol−1
- ^ ΔfG°, 120.1 kJ · mol−1
- ^ S°, 164.8 J · K−1 · mol−1
- ^ ΔfH°, -481.29 kJ · mol−1
- ^ ΔfG°, -440.50 kJ · mol−1
- ^ S°, 118.24 J · K−1 · mol−1
- ^ Cp°, 72.93 J · K−1 · mol−1
- ^ ΔfH°, -263.6 kJ · mol−1
- ^ ΔfH°, -555.05 kJ · mol−1
- ^ ΔfG°, -490.8 kJ · mol−1
- ^ S°, 38.9 J · K−1 · mol−1
- ^ Cp°, -222. J · K−1 · mol−1
- ^ ΔfG°, -492.0 kJ · mol−1
- ^ ΔfH°, -789.9 kJ · mol−1
- ^ ΔfG°, -696.1 kJ · mol−1
- ^ S°, 174.1 J · K−1 · mol−1
- ^ ΔfH°, -1092.0 kJ · mol−1
- ^ ΔfG°, -942.1 kJ · mol−1
- ^ S°, 218.8 J · K−1 · mol−1
- ^ ΔfH°, -1687.4 kJ · mol−1
- ^ ΔfG°, -1423.6 kJ · mol−1
- ^ S°, 303.3 J · K−1 · mol−1
- ^ ΔfH°, 2519.69 kJ · mol−1
- ^ ΔfH°, -220.75 kJ · mol−1
- ^ ΔfG°, -228.1 kJ · mol−1
- ^ S°, -73.6 J · K−1 · mol−1
- ^ Cp°, 50. 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