3NaCl + BaMnO4 + 4H+ 🔥→ NaClO2 + 2Na+ + Mn2+ + BaCl2 + 2H2O
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- Reaction of sodium chloride and barium manganate under acidic condition
- 3NaClSodium chloride + BaMnO4Barium manganate + 4H+Hydrogen ionNaClO2Sodium chlorite + 2Na+Sodium ion + Mn2+Manganese(II) ion + BaCl2Barium chloride + 2H2OWater🔥⟶
The reaction of sodium chloride, barium manganate, and hydrogen ion yields sodium chlorite, sodium ion, manganese(II) ion, barium chloride, 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 barium manganate under acidic condition
- 3NaClSodium chloride + BaMnO4Barium manganate + 4H+Hydrogen ionNaClO2Sodium chlorite + 2Na+Sodium ion + Mn2+Manganese(II) ion + BaCl2Barium chloride + 2H2OWater🔥⟶
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 barium manganate under acidic condition
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| NaCl | Sodium chloride | 3 | Reducing | Hardly oxidizable |
| BaMnO4 | Barium manganate | 1 | Oxidizing | Oxidizing under acidic condition |
| H+ | Hydrogen ion | 4 | – | Hydrogen ion |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| NaClO2 | Sodium chlorite | 1 | Oxidized | – |
| Na+ | Sodium ion | 2 | – | – |
| Mn2+ | Manganese(II) ion | 1 | Reduced | – |
| BaCl2 | Barium chloride | 1 | – | – |
| H2O | Water | 2 | – | Water |
Thermodynamic changes
Changes in standard condition
- Reaction of sodium chloride and barium manganate under acidic condition◆
ΔrG 4.5 kJ/mol K 0.16 × 100 pK 0.79
| 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 | – | 4.5 | – | – |
per 1 mol of | – | 1.5 | – | – |
per 1 mol of | – | 4.5 | – | – |
per 1 mol of Hydrogen ion | – | 1.1 | – | – |
per 1 mol of | – | 4.5 | – | – |
per 1 mol of Sodium ion | – | 2.3 | – | – |
per 1 mol of Manganese(II) ion | – | 4.5 | – | – |
per 1 mol of | – | 4.5 | – | – |
per 1 mol of | – | 2.3 | – | – |
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] |
| BaMnO4 (cr) | – | -1119.2[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 |
|---|---|---|---|---|
| NaClO2 (cr) | -307.02[1] | – | – | – |
| NaClO2 (ai) | -306.7[1] | -244.7[1] | 160.2[1] | – |
| NaClO2 (cr) 3 hydrate | -1192.77[1] | – | – | – |
| Na+ (g) | 609.358[1] | – | – | – |
| Na+ (ao) | -240.12[1] | -261.905[1] | 59.0[1] | 46.4[1] |
| Mn2+ (g) | 2519.69[1] | – | – | – |
| Mn2+ (ao) | -220.75[1] | -228.1[1] | -73.6[1] | 50[1] |
| BaCl2 (cr) | -858.6[1] | -810.4[1] | 123.68[1] | 75.14[1] |
| BaCl2 (g) | -525.9[1] | -537.6[1] | 325.29[1] | 56.19[1] |
| BaCl2 (ai) | -871.95[1] | -823.21[1] | 122.6[1] | – |
| BaCl2 (cr) 1 hydrate | -1160.6[1] | -1055.63[1] | 166.9[1] | – |
| BaCl2 (cr) 2 hydrate | -1460.13[1] | -1296.32[1] | 202.9[1] | 161.96[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, (g):Gas, (ao):Un-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
- ^ ΔfG°, -1119.2 kJ · 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°, -307.02 kJ · mol−1
- ^ ΔfH°, -306.7 kJ · mol−1
- ^ ΔfG°, -244.7 kJ · mol−1
- ^ S°, 160.2 J · K−1 · mol−1
- ^ ΔfH°, -1192.77 kJ · 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°, 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°, -858.6 kJ · mol−1
- ^ ΔfG°, -810.4 kJ · mol−1
- ^ S°, 123.68 J · K−1 · mol−1
- ^ Cp°, 75.14 J · K−1 · mol−1
- ^ ΔfH°, -525.9 kJ · mol−1
- ^ ΔfG°, -537.6 kJ · mol−1
- ^ S°, 325.29 J · K−1 · mol−1
- ^ Cp°, 56.19 J · K−1 · mol−1
- ^ ΔfH°, -871.95 kJ · mol−1
- ^ ΔfG°, -823.21 kJ · mol−1
- ^ S°, 122.6 J · K−1 · mol−1
- ^ ΔfH°, -1160.6 kJ · mol−1
- ^ ΔfG°, -1055.63 kJ · mol−1
- ^ S°, 166.9 J · K−1 · mol−1
- ^ ΔfH°, -1460.13 kJ · mol−1
- ^ ΔfG°, -1296.32 kJ · mol−1
- ^ S°, 202.9 J · K−1 · mol−1
- ^ Cp°, 161.96 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