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Ca(ClO4)2 + H2SO4 ๐Ÿ’งโ†’ CaSO4โ†“ + Cl2O7 + H2O

The reaction of calcium perchlorate and sulfuric acid yields calcium sulfate, dichlorine heptaoxide, and water (Other reactions are here). This reaction is an acid-base 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

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Ca(ClO4)2Calcium perchlorate1
Lewis acid
Very soluble in water
H2SO4Sulfuric acid1
Lewis base
Miscible with water

Products

Chemical formulaNameCoefficientTypeType in general
equation
CaSO4Calcium sulfate1
Lewis conjugate
Slightly soluble in water
Cl2O7Dichlorine heptaoxide1
Non-redox product
โ€“
H2OWater1
Non-redox product
โ€“

Thermodynamic changes

Changes in standard condition (1)

Reaction of calcium perchlorate and sulfuric acid
Ca(ClO4)2Crystalline solid + H2SO4Liquid
๐Ÿ’ง
โŸถ
CaSO4โ†“Crystalline solidinsoluble, anhydrite + Cl2O7Liquid + H2OLiquid
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
68.9โ€“โ€“โ€“
68.9โ€“โ€“โ€“
per 1 mol of
68.9โ€“โ€“โ€“
per 1 mol of
68.9โ€“โ€“โ€“
68.9โ€“โ€“โ€“
per 1 mol of
68.9โ€“โ€“โ€“

Changes in standard condition (2)

Reaction of calcium perchlorate and sulfuric acid
Ca(ClO4)2Crystalline solid + H2SO4Liquid
๐Ÿ’ง
โŸถ
CaSO4โ†“Crystalline solidsoluble, ฮฑ + Cl2O7Liquid + H2OLiquid
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
77.8โ€“โ€“โ€“
77.8โ€“โ€“โ€“
per 1 mol of
77.8โ€“โ€“โ€“
per 1 mol of
77.8โ€“โ€“โ€“
77.8โ€“โ€“โ€“
per 1 mol of
77.8โ€“โ€“โ€“

Changes in standard condition (3)

Reaction of calcium perchlorate and sulfuric acid
Ca(ClO4)2Crystalline solid + H2SO4Liquid
๐Ÿ’ง
โŸถ
CaSO4โ†“Crystalline solidsoluble, ฮฒ + Cl2O7Liquid + H2OLiquid
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
82.2โ€“โ€“โ€“
82.2โ€“โ€“โ€“
per 1 mol of
82.2โ€“โ€“โ€“
per 1 mol of
82.2โ€“โ€“โ€“
82.2โ€“โ€“โ€“
per 1 mol of
82.2โ€“โ€“โ€“

Changes in aqueous solution (1)

Reaction of calcium perchlorate and sulfuric acid
Ca(ClO4)2Ionized aqueous solution + H2SO4Ionized aqueous solution
๐Ÿ’ง
โŸถ
CaSO4โ†“Crystalline solidinsoluble, anhydrite + Cl2O7Liquid + H2OLiquid
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
228.9โ€“โ€“โ€“
228.9โ€“โ€“โ€“
per 1 mol of
228.9โ€“โ€“โ€“
per 1 mol of
228.9โ€“โ€“โ€“
228.9โ€“โ€“โ€“
per 1 mol of
228.9โ€“โ€“โ€“

Changes in aqueous solution (2)

Reaction of calcium perchlorate and sulfuric acid
Ca(ClO4)2Ionized aqueous solution + H2SO4Ionized aqueous solution
๐Ÿ’ง
โŸถ
CaSO4โ†“Crystalline solidsoluble, ฮฑ + Cl2O7Liquid + H2OLiquid
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
237.8โ€“โ€“โ€“
237.8โ€“โ€“โ€“
per 1 mol of
237.8โ€“โ€“โ€“
per 1 mol of
237.8โ€“โ€“โ€“
237.8โ€“โ€“โ€“
per 1 mol of
237.8โ€“โ€“โ€“

Changes in aqueous solution (3)

Reaction of calcium perchlorate and sulfuric acid
Ca(ClO4)2Ionized aqueous solution + H2SO4Ionized aqueous solution
๐Ÿ’ง
โŸถ
CaSO4โ†“Crystalline solidsoluble, ฮฒ + Cl2O7Liquid + H2OLiquid
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
242.2โ€“โ€“โ€“
242.2โ€“โ€“โ€“
per 1 mol of
242.2โ€“โ€“โ€“
per 1 mol of
242.2โ€“โ€“โ€“
242.2โ€“โ€“โ€“
per 1 mol of
242.2โ€“โ€“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
Ca(ClO4)2 (cr)-736.76[1]โ€“โ€“โ€“
Ca(ClO4)2 (ai)-801.49[1]-570.62[1]310.9[1]โ€“
Ca(ClO4)2 (cr)
4 hydrate
-1948.9[1]-1476.47[1]433.5[1]โ€“
H2SO4 (cr)โ€“โ€“โ€“โ€“
H2SO4 (l)-813.989[1]-690.003[1]156.904[1]138.91[1]
H2SO4 (ai)-909.27[1]-744.53[1]20.1[1]-293[1]
H2SO4 (l)
1 hydrate
-1127.621[1]-950.383[1]211.54[1]214.85[1]
H2SO4 (l)
2 hydrate
-1427.100[1]-1199.650[1]276.40[1]260.83[1]
H2SO4 (l)
3 hydrate
-1720.402[1]-1443.980[1]345.39[1]318.95[1]
H2SO4 (l)
4 hydrate
-2011.199[1]-1685.863[1]414.59[1]382.21[1]
H2SO4 (l)
6.5 hydrate
-2733.256[1]-2285.734[1]587.89[1]570.28[1]
* (cr):Crystalline solid, (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
CaSO4 (cr)
insoluble, anhydrite
-1434.11[1]-1321.79[1]106.7[1]99.66[1]
CaSO4 (cr)
soluble, ฮฑ
-1425.24[1]-1313.42[1]108.4[1]100.21[1]
CaSO4 (cr)
soluble, ฮฒ
-1420.80[1]-1308.98[1]108.4[1]99.04[1]
CaSO4 (ai)-1452.10[1]-1298.10[1]-33.1[1]โ€“
CaSO4 (cr)
0.5 hydrate
macrocrystalline, ฮฑ
-1576.74[1]-1436.74[1]130.5[1]119.41[1]
CaSO4 (cr)
0.5 hydrate
microcrystalline, ฮฒ
-1574.65[1]-1435.78[1]134.3[1]124.22[1]
CaSO4 (cr)
2 hydrate
selenite
-2022.63[1]-1797.28[1]194.1[1]186.02[1]
Cl2O7 (l)238.1[1]โ€“โ€“โ€“
Cl2O7 (g)272.0[1]โ€“โ€“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, (ai):Ionized aqueous solution, (l):Liquid, (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)