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9NaCl + 2Mg(NO3)2 🔥→ 5NaClO2 + 2Na2O + 2N2↑ + 2MgCl2

The reaction of sodium chloride and magnesium nitrate yields sodium chlorite, sodium oxide, nitrogen, and magnesium chloride (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:

Table of contents
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related reactions
  5. 5Related categories

Reaction data

Chemical equation

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

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
NaClSodium chloride9
Reducing
Hardly oxidizable
Mg(NO3)2Magnesium nitrate2
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
NaClO2Sodium chlorite5
Oxidized
Na2OSodium oxide2
N2Nitrogen2
Reduced
MgCl2Magnesium chloride2

Thermodynamic changes

Changes in standard condition

Reaction of sodium chloride and magnesium nitrate
9NaClCrystalline solid + 2Mg(NO3)2Crystalline solid
🔥
5NaClO2Crystalline solid + 2Na2OCrystalline solid + 2N2Gas + 2MgCl2Crystalline solid
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
per 1 mol of
817.750
per 1 mol of
817.750

Changes in aqueous solution

Reaction of sodium chloride and magnesium nitrate
ΔrG1484.2 kJ/mol
K0.95 × 10−260
pK260.02
9NaClIonized aqueous solution + 2Mg(NO3)2Ionized aqueous solution
🔥
5NaClO2Ionized aqueous solution + 2Na2OCrystalline solid + 2N2Gas + 2MgCl2Ionized aqueous solution
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
1464.31484.2−65.0
per 1 mol of
162.70164.91−7.22
per 1 mol of
732.15742.10−32.5
per 1 mol of
292.86296.84−13.0
per 1 mol of
732.15742.10−32.5
per 1 mol of
732.15742.10−32.5
per 1 mol of
732.15742.10−32.5

Thermodynamic data of reactants

Chemical formulaStandard 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 formulaStandard 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]
N2 (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

  1. 1
    Janiel J. Reed (1989)
    The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI Units
    National Institute of Standards and Technology (NIST)