9NaCl + 2Mg(NO3)2 🔥→ 5NaClO2 + 2Na2O + 2N2↑ + 2MgCl2
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- Reaction of sodium chloride and magnesium nitrate
The reaction of sodium chloride and magnesium nitrate yields sodium chlorite, sodium oxide, , and magnesium chloride (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 magnesium nitrate
General equation
- Reaction of hardly oxidizable species and oxidizing species
- Hardly oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of sodium chloride and magnesium nitrate
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
NaCl | Sodium chloride | 9 | Reducing | Hardly oxidizable |
Mg(NO3)2 | Magnesium nitrate | 2 | Oxidizing | Oxidizing |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
NaClO2 | Sodium chlorite | 5 | Oxidized | – |
Na2O | Sodium oxide | 2 | – | – |
2 | Reduced | – | ||
MgCl2 | Magnesium chloride | 2 | – | – |
Thermodynamic changes
Changes in standard condition
- Reaction of sodium chloride and magnesium nitrate
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 | 1635.50 | – | – | – |
per 1 mol of | 181.722 | – | – | – |
per 1 mol of | 817.750 | – | – | – |
per 1 mol of | 327.100 | – | – | – |
per 1 mol of | 817.750 | – | – | – |
817.750 | – | – | – | |
per 1 mol of | 817.750 | – | – | – |
Changes in aqueous solution
- Reaction of sodium chloride and magnesium nitrate◆
ΔrG 1484.2 kJ/mol K 0.95 × 10−260 pK 260.02
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 | 1464.3 | 1484.2 | −65.0 | – |
per 1 mol of | 162.70 | 164.91 | −7.22 | – |
per 1 mol of | 732.15 | 742.10 | −32.5 | – |
per 1 mol of | 292.86 | 296.84 | −13.0 | – |
per 1 mol of | 732.15 | 742.10 | −32.5 | – |
732.15 | 742.10 | −32.5 | – | |
per 1 mol of | 732.15 | 742.10 | −32.5 | – |
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] |
Mg(NO3)2 (cr) | -790.65[1] | -589.4[1] | 164.0[1] | 141.92[1] |
Mg(NO3)2 (ai) | -881.57[1] | -677.3[1] | 154.8[1] | – |
Mg(NO3)2 (cr) 2 hydrate | -1409.2[1] | – | – | – |
Mg(NO3)2 (cr) 6 hydrate | -2613.28[1] | -2080.3[1] | 452[1] | – |
* (cr):Crystalline solid, (g):Gas, (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 |
---|---|---|---|---|
NaClO2 (cr) | -307.02[1] | – | – | – |
NaClO2 (ai) | -306.7[1] | -244.7[1] | 160.2[1] | – |
NaClO2 (cr) 3 hydrate | -1192.77[1] | – | – | – |
Na2O (cr) | -414.22[1] | -375.46[1] | 75.06[1] | 69.12[1] |
Na2O (g) | -35.6[1] | -52.3[1] | 261.2[1] | 55.2[1] |
(g) | 0[1] | 0[1] | 191.61[1] | 29.125[1] |
MgCl2 (cr) | -641.32[1] | -591.79[1] | 89.62[1] | 71.38[1] |
MgCl2 (g) | -400.4[1] | – | – | – |
MgCl2 (ai) | -801.15[1] | -717.1[1] | -25.1[1] | – |
MgCl2 (cr) 1 hydrate | -966.63[1] | -861.74[1] | 137.2[1] | 115.27[1] |
MgCl2 (cr) 2 hydrate | -1279.72[1] | -1118.00[1] | 179.9[1] | 159.20[1] |
MgCl2 (cr) 4 hydrate | -1898.99[1] | -1623.29[1] | 264.0[1] | 241.42[1] |
MgCl2 (cr) 6 hydrate | -2499.02[1] | -2114.64[1] | 366.1[1] | 315.06[1] |
* (cr):Crystalline solid, (ai):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°, -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°, -790.65 kJ · mol−1
- ^ ΔfG°, -589.4 kJ · mol−1
- ^ S°, 164.0 J · K−1 · mol−1
- ^ Cp°, 141.92 J · K−1 · mol−1
- ^ ΔfH°, -881.57 kJ · mol−1
- ^ ΔfG°, -677.3 kJ · mol−1
- ^ S°, 154.8 J · K−1 · mol−1
- ^ ΔfH°, -1409.2 kJ · mol−1
- ^ ΔfH°, -2613.28 kJ · mol−1
- ^ ΔfG°, -2080.3 kJ · mol−1
- ^ S°, 452. 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°, -414.22 kJ · mol−1
- ^ ΔfG°, -375.46 kJ · mol−1
- ^ S°, 75.06 J · K−1 · mol−1
- ^ Cp°, 69.12 J · K−1 · mol−1
- ^ ΔfH°, -35.6 kJ · mol−1
- ^ ΔfG°, -52.3 kJ · mol−1
- ^ S°, 261.2 J · K−1 · mol−1
- ^ Cp°, 55.2 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 191.61 J · K−1 · mol−1
- ^ Cp°, 29.125 J · K−1 · mol−1
- ^ ΔfH°, -641.32 kJ · mol−1
- ^ ΔfG°, -591.79 kJ · mol−1
- ^ S°, 89.62 J · K−1 · mol−1
- ^ Cp°, 71.38 J · K−1 · mol−1
- ^ ΔfH°, -400.4 kJ · mol−1
- ^ ΔfH°, -801.15 kJ · mol−1
- ^ ΔfG°, -717.1 kJ · mol−1
- ^ S°, -25.1 J · K−1 · mol−1
- ^ ΔfH°, -966.63 kJ · mol−1
- ^ ΔfG°, -861.74 kJ · mol−1
- ^ S°, 137.2 J · K−1 · mol−1
- ^ Cp°, 115.27 J · K−1 · mol−1
- ^ ΔfH°, -1279.72 kJ · mol−1
- ^ ΔfG°, -1118.00 kJ · mol−1
- ^ S°, 179.9 J · K−1 · mol−1
- ^ Cp°, 159.20 J · K−1 · mol−1
- ^ ΔfH°, -1898.99 kJ · mol−1
- ^ ΔfG°, -1623.29 kJ · mol−1
- ^ S°, 264.0 J · K−1 · mol−1
- ^ Cp°, 241.42 J · K−1 · mol−1
- ^ ΔfH°, -2499.02 kJ · mol−1
- ^ ΔfG°, -2114.64 kJ · mol−1
- ^ S°, 366.1 J · K−1 · mol−1
- ^ Cp°, 315.06 J · K−1 · mol−1