5NaCl + 2BaCrO4 + 11H+ → 5Na+ + HClO3 + 2Cr3+ + 2BaCl2 + 5H2O
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- Reaction of sodium chloride and barium chromate under acidic condition
- 5NaClSodium chloride + 2BaCrO4Barium chromate + 11H+Hydrogen ion5Na+Sodium ion + HClO3Chloric acid + 2Cr3+Chromium(III) ion + 2BaCl2Barium chloride + 5H2OWater⟶
The reaction of sodium chloride, barium chromate, and hydrogen ion yields sodium ion, chloric acid, chromium(III) 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 chromate under acidic condition
- 5NaClSodium chloride + 2BaCrO4Barium chromate + 11H+Hydrogen ion5Na+Sodium ion + HClO3Chloric acid + 2Cr3+Chromium(III) ion + 2BaCl2Barium chloride + 5H2OWater⟶
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 chromate under acidic condition
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| NaCl | Sodium chloride | 5 | Reducing | Hardly oxidizable |
| BaCrO4 | Barium chromate | 2 | Oxidizing | Oxidizing under acidic condition |
| H+ | Hydrogen ion | 11 | – | Hydrogen ion |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Na+ | Sodium ion | 5 | – | – |
| HClO3 | Chloric acid | 1 | Oxidized | – |
| Cr3+ | Chromium(III) ion | 2 | Reduced | – |
| BaCl2 | Barium chloride | 2 | – | – |
| H2O | Water | 5 | – | 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 |
|---|---|---|---|---|
| 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] |
| BaCrO4 (cr) | -1446.0[1] | -1345.22[1] | 158.6[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] |
| HClO3 (ai) | -103.97[1] | -7.95[1] | 162.3[1] | – |
| Cr3+ (g) | 5648.4[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] |
* (g):Gas, (ao):Un-ionized aqueous solution, (ai):Ionized aqueous solution, (cr):Crystalline solid, (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°, -1446.0 kJ · mol−1
- ^ ΔfG°, -1345.22 kJ · mol−1
- ^ S°, 158.6 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°, -103.97 kJ · mol−1
- ^ ΔfG°, -7.95 kJ · mol−1
- ^ S°, 162.3 J · K−1 · mol−1
- ^ ΔfH°, 5648.4 kJ · 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