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3NaCl + Co(NO3)2 + H2O ๐Ÿ”ฅโ†’ 3NaClO + 2NOโ†‘ + Co(OH)2

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Reaction of sodium chloride and cobalt(II) nitrate under neutral condition
3NaClSodium chloride + Co(NO3)2Cobalt(II) nitrate + H2OWater
๐Ÿ”ฅ
โŸถ
3NaClOSodium hypochlorite + 2NOโ†‘Nitrogen monoxide + Co(OH)2Cobalt(II) hydroxide

The reaction of sodium chloride, cobalt(II) nitrate, and water yields sodium hypochlorite, nitrogen monoxide, and cobalt(II) hydroxide (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

Reaction of sodium chloride and cobalt(II) nitrate under neutral condition
3NaClSodium chloride + Co(NO3)2Cobalt(II) nitrate + H2OWater
๐Ÿ”ฅ
โŸถ
3NaClOSodium hypochlorite + 2NOโ†‘Nitrogen monoxide + Co(OH)2Cobalt(II) hydroxide

General equation

Reaction of hardly oxidizable species and oxidizing species under neutral condition
Hardly oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H2ONon-redox agent
โŸถ
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reaction of sodium chloride and cobalt(II) nitrate under neutral condition

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
NaClSodium chloride3
Reducing
Hardly oxidizable
Co(NO3)2Cobalt(II) nitrate1
Oxidizing
Oxidizing
H2OWater1
โ€“
Water

Products

Chemical formulaNameCoefficientTypeType in general
equation
NaClOSodium hypochlorite3
Oxidized
โ€“
NONitrogen monoxide2
Reduced
โ€“
Co(OH)2Cobalt(II) hydroxide1
โ€“
โ€“

Thermodynamic changes

Changes in standard condition (1)

Reaction of sodium chloride and cobalt(II) nitrate under neutral condition
โ—†
ฮ”rG548.7 kJ/mol
K0.74 ร— 10โˆ’96
pK96.13
3NaClIonized aqueous solution + Co(NO3)2Ionized aqueous solution + H2OLiquid
๐Ÿ”ฅ
โŸถ
3NaClOIonized aqueous solution + 2NOโ†‘Gas + Co(OH)2Un-ionized aqueous solution
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
โ€“548.7โ€“โ€“
per 1 mol of
โ€“182.9โ€“โ€“
per 1 mol of
โ€“548.7โ€“โ€“
per 1 mol of
โ€“548.7โ€“โ€“
โ€“182.9โ€“โ€“
per 1 mol of
โ€“274.4โ€“โ€“
โ€“548.7โ€“โ€“

Changes in standard condition (2)

Reaction of sodium chloride and cobalt(II) nitrate under neutral condition
โ—†
ฮ”rG520.3 kJ/mol
K0.70 ร— 10โˆ’91
pK91.15
3NaClIonized aqueous solution + Co(NO3)2Ionized aqueous solution + H2OLiquid
๐Ÿ”ฅ
โŸถ
3NaClOIonized aqueous solution + 2NOโ†‘Gas + Co(OH)2Crystalline solidblue, precipitated
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
โ€“520.3โ€“โ€“
per 1 mol of
โ€“173.4โ€“โ€“
per 1 mol of
โ€“520.3โ€“โ€“
per 1 mol of
โ€“520.3โ€“โ€“
โ€“173.4โ€“โ€“
per 1 mol of
โ€“260.1โ€“โ€“
โ€“520.3โ€“โ€“

Changes in standard condition (3)

Reaction of sodium chloride and cobalt(II) nitrate under neutral condition
โ—†
ฮ”rG516.1 kJ/mol
K0.38 ร— 10โˆ’90
pK90.42
3NaClIonized aqueous solution + Co(NO3)2Ionized aqueous solution + H2OLiquid
๐Ÿ”ฅ
โŸถ
3NaClOIonized aqueous solution + 2NOโ†‘Gas + Co(OH)2Crystalline solidpink, precipitated
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
579.3516.1204โ€“
per 1 mol of
193.1172.068.0โ€“
per 1 mol of
579.3516.1204โ€“
per 1 mol of
579.3516.1204โ€“
193.1172.068.0โ€“
per 1 mol of
289.6258.1102โ€“
579.3516.1204โ€“

Changes in standard condition (4)

Reaction of sodium chloride and cobalt(II) nitrate under neutral condition
โ—†
ฮ”rG512.3 kJ/mol
K0.18 ร— 10โˆ’89
pK89.75
3NaClIonized aqueous solution + Co(NO3)2Ionized aqueous solution + H2OLiquid
๐Ÿ”ฅ
โŸถ
3NaClOIonized aqueous solution + 2NOโ†‘Gas + Co(OH)2Crystalline solidpink, precipitated, aged
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
โ€“512.3โ€“โ€“
per 1 mol of
โ€“170.8โ€“โ€“
per 1 mol of
โ€“512.3โ€“โ€“
per 1 mol of
โ€“512.3โ€“โ€“
โ€“170.8โ€“โ€“
per 1 mol of
โ€“256.1โ€“โ€“
โ€“512.3โ€“โ€“

Thermodynamic data of reactants

Chemical formulaStandard enthalpy
of formation
ฮ”fHยฐ
kJ ยท molโˆ’1		Standard Gibbs
energy of
formation
ฮ”fGยฐ
kJ ยท molโˆ’1		Standard
molar entropy
Sยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard molar
heat capacity at
constant pressure
Cpยฐ
J ยท Kโˆ’1 ยท molโˆ’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]
Co(NO3)2 (cr)-420.5[1]โ€“โ€“โ€“
Co(NO3)2 (ai)-472.8[1]-276.9[1]180[1]โ€“
Co(NO3)2 (cr)
2 hydrate
-1021.7[1]โ€“โ€“โ€“
Co(NO3)2 (cr)
3 hydrate
-1325.9[1]โ€“โ€“โ€“
Co(NO3)2 (cr)
4 hydrate
-1630.5[1]โ€“โ€“โ€“
Co(NO3)2 (cr)
6 hydrate
-2211.20[1]โ€“โ€“452[1]
H2O (cr)โ€“โ€“โ€“โ€“
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, (g):Gas, (ai):Ionized aqueous solution, (l):Liquid

Thermodynamic data of products

Chemical formulaStandard enthalpy
of formation
ฮ”fHยฐ
kJ ยท molโˆ’1		Standard Gibbs
energy of
formation
ฮ”fGยฐ
kJ ยท molโˆ’1		Standard
molar entropy
Sยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard molar
heat capacity at
constant pressure
Cpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
NaClO (ai)-347.3[1]-298.7[1]100[1]โ€“
NO (g)90.25[1]86.55[1]210.761[1]29.844[1]
Co(OH)2 (cr)
blue, precipitated
โ€“-450.1[1]โ€“โ€“
Co(OH)2 (cr)
pink, precipitated
-539.7[1]-454.3[1]79[1]โ€“
Co(OH)2 (cr)
pink, precipitated, aged
โ€“-458.1[1]โ€“โ€“
Co(OH)2 (ai)-518.0[1]-369.0[1]-134[1]โ€“
Co(OH)2 (ao)โ€“-421.7[1]โ€“โ€“
* (ai):Ionized aqueous solution, (g):Gas, (cr):Crystalline solid, (ao):Un-ionized aqueous solution

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)