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7Cu + 2NaClO4 + 8H2O ๐Ÿ”ฅโ†’ 7Cu(OH)2 + Cl2โ†‘ + 2NaOH

Reaction of copper and sodium perchlorate under neutral condition

The reaction of copper, sodium perchlorate, and water yields copper(II) hydroxide, chlorine, and sodium 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 copper and sodium perchlorate under neutral condition

General equation

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

Oxidation state of each atom

Reaction of copper and sodium perchlorate under neutral condition

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
CuCopper7
Reducing
Oxidizable
NaClO4Sodium perchlorate2
Oxidizing
Oxidizing
H2OWater8
โ€“
Water

Products

Chemical formulaNameCoefficientTypeType in general
equation
Cu(OH)2Copper(II) hydroxide7
Oxidized
โ€“
Cl2Chlorine1
Reduced
โ€“
NaOHSodium hydroxide2
โ€“
โ€“

Thermodynamic changes

Changes in standard condition

Reaction of copper and sodium perchlorate under neutral condition
7CuCrystalline solid + 2NaClO4Crystalline solid + 8H2OLiquid
๐Ÿ”ฅ
โŸถ
7Cu(OH)2Crystalline solid + Cl2โ†‘Gas + 2NaOHCrystalline solid
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
โˆ’946.6โ€“โ€“โ€“
per 1 mol of
โˆ’135.2โ€“โ€“โ€“
per 1 mol of
โˆ’473.3โ€“โ€“โ€“
per 1 mol of
โˆ’118.3โ€“โ€“โ€“
โˆ’135.2โ€“โ€“โ€“
per 1 mol of
โˆ’946.6โ€“โ€“โ€“
per 1 mol of
โˆ’473.3โ€“โ€“โ€“

Changes in aqueous solution (1)

Reaction of copper and sodium perchlorate under neutral condition
โ—†
ฮ”rGโˆ’143.52 kJ/mol
K1.39 ร— 1025
pKโˆ’25.14
7CuCrystalline solid + 2NaClO4Ionized aqueous solution + 8H2OLiquid
๐Ÿ”ฅ
โŸถ
7Cu(OH)2Ionized aqueous solution + Cl2โ†‘Gas + 2NaOHIonized 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
โˆ’681.23โˆ’143.52โˆ’1800.4โ€“
per 1 mol of
โˆ’97.319โˆ’20.503โˆ’257.20โ€“
per 1 mol of
โˆ’340.62โˆ’71.760โˆ’900.20โ€“
per 1 mol of
โˆ’85.154โˆ’17.940โˆ’225.05โ€“
โˆ’97.319โˆ’20.503โˆ’257.20โ€“
per 1 mol of
โˆ’681.23โˆ’143.52โˆ’1800.4โ€“
per 1 mol of
โˆ’340.62โˆ’71.760โˆ’900.20โ€“

Changes in aqueous solution (2)

Reaction of copper and sodium perchlorate under neutral condition
โ—†
ฮ”rGโˆ’136.58 kJ/mol
K8.47 ร— 1023
pKโˆ’23.93
7CuCrystalline solid + 2NaClO4Ionized aqueous solution + 8H2OLiquid
๐Ÿ”ฅ
โŸถ
7Cu(OH)2Ionized aqueous solution + Cl2โ†‘Un-ionized aqueous solution + 2NaOHIonized 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
โˆ’704.6โˆ’136.58โˆ’1902โ€“
per 1 mol of
โˆ’100.7โˆ’19.511โˆ’271.7โ€“
per 1 mol of
โˆ’352.3โˆ’68.290โˆ’951.0โ€“
per 1 mol of
โˆ’88.08โˆ’17.073โˆ’237.8โ€“
โˆ’100.7โˆ’19.511โˆ’271.7โ€“
per 1 mol of
โˆ’704.6โˆ’136.58โˆ’1902โ€“
per 1 mol of
โˆ’352.3โˆ’68.290โˆ’951.0โ€“

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
Cu (cr)0[1]0[1]33.150[1]24.435[1]
Cu (g)338.32[1]298.58[1]166.38[1]20.786[1]
NaClO4 (cr)-383.30[1]-254.85[1]142.3[1]โ€“
NaClO4 (ai)-369.45[1]-270.41[1]241.0[1]โ€“
NaClO4 (cr)
1 hydrate
-677.77[1]-494.29[1]190.8[1]โ€“
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
Cu(OH)2 (cr)-449.8[1]โ€“โ€“โ€“
Cu(OH)2 (ai)-395.22[1]-249.01[1]-120.9[1]โ€“
Cl2 (g)0[1]0[1]223.066[1]33.907[1]
Cl2 (ao)-23.4[1]6.94[1]121[1]โ€“
NaOH (cr)-425.609[1]-379.494[1]64.455[1]59.54[1]
NaOH (g)-207.1[1]-210.0[1]228.43[1]48.37[1]
NaOH (ai)-470.114[1]-419.150[1]48.1[1]-102.1[1]
NaOH (cr)
1 hydrate
-734.543[1]-629.338[1]99.50[1]90.17[1]
NaOH (l)
2 hydrate
-1019.076[1]-873.091[1]195.979[1]239.41[1]
NaOH (l)
3.5 hydrate
-1459.798[1]-1236.356[1]286.089[1]354.43[1]
NaOH (l)
4 hydrate
-1605.15[1]-1356.64[1]318.70[1]โ€“
NaOH (l)
5 hydrate
-1894.31[1]-1596.34[1]386.06[1]โ€“
NaOH (l)
7 hydrate
-2469.02[1]-2073.80[1]526.31[1]โ€“
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas, (ao):Un-ionized aqueous solution, (l):Liquid

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)