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5ZnCl2 + 16KMnO4 + 58H+ → 5Zn2+ + 10HClO4 + 16Mn2+ + 16K+ + 24H2O

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Reaction of zinc chloride and potassium permanganate under acidic condition
5ZnCl2Zinc chloride + 16KMnO4Potassium permanganate + 58H+Hydrogen ion
⟶
5Zn2+Zinc ion + 10HClO4Perchloric acid + 16Mn2+Manganese(II) ion + 16K+Potassium ion + 24H2OWater

The reaction of zinc chloride, potassium permanganate, and hydrogen ion yields zinc ion, perchloric acid, manganese(II) ion, potassium ion, and water (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 zinc chloride and potassium permanganate under acidic condition
5ZnCl2Zinc chloride + 16KMnO4Potassium permanganate + 58H+Hydrogen ion
⟶
5Zn2+Zinc ion + 10HClO4Perchloric acid + 16Mn2+Manganese(II) ion + 16K+Potassium ion + 24H2OWater

General equation

Reaction of hardly oxidizable species and oxidizing species under acidic condition
Hardly oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H+Non-redox agent
⟶
ProductOxidation product + ProductReduction product + H2ONon-redox product

Oxidation state of each atom

Reaction of zinc chloride and potassium permanganate under acidic condition

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
ZnCl2Zinc chloride5
Reducing
Hardly oxidizable
KMnO4Potassium permanganate16
Oxidizing
Oxidizing under acidic condition
H+Hydrogen ion58
–
Hydrogen ion

Products

Chemical formulaNameCoefficientTypeType in general
equation
Zn2+Zinc ion5
–
–
HClO4Perchloric acid10
Oxidized
–
Mn2+Manganese(II) ion16
Reduced
–
K+Potassium ion16
–
–
H2OWater24
–
Water

Thermodynamic changes

Changes in standard condition (1)

Reaction of zinc chloride and potassium permanganate under acidic condition
◆
ΔrG−958.0 kJ/mol
K6.83 × 10167
pK−167.83
5ZnCl2Ionized aqueous solution + 16KMnO4Ionized aqueous solution + 58H+Un-ionized aqueous solution
⟶
5Zn2+Un-ionized aqueous solution + 10HClO4Ionized aqueous solution + 16Mn2+Un-ionized aqueous solution + 16K+Un-ionized aqueous solution + 24H2OLiquid
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
−1351.0−958.0−1303.5–
per 1 mol of
−270.20−191.6−260.70–
−84.438−59.88−81.469–
per 1 mol of
Hydrogen ion
−23.293−16.52−22.474–
per 1 mol of
Zinc ion
−270.20−191.6−260.70–
per 1 mol of
−135.10−95.80−130.35–
per 1 mol of
Manganese(II) ion
−84.438−59.88−81.469–
per 1 mol of
Potassium ion
−84.438−59.88−81.469–
per 1 mol of
−56.292−39.92−54.313–

Changes in standard condition (2)

Reaction of zinc chloride and potassium permanganate under acidic condition
◆
ΔrG−987.0 kJ/mol
K8.22 × 10172
pK−172.91
5ZnCl2Un-ionized aqueous solution + 16KMnO4Ionized aqueous solution + 58H+Un-ionized aqueous solution
⟶
5Zn2+Un-ionized aqueous solution + 10HClO4Ionized aqueous solution + 16Mn2+Un-ionized aqueous solution + 16K+Un-ionized aqueous solution + 24H2OLiquid
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
–−987.0––
per 1 mol of
–−197.4––
–−61.69––
per 1 mol of
Hydrogen ion
–−17.02––
per 1 mol of
Zinc ion
–−197.4––
per 1 mol of
–−98.70––
per 1 mol of
Manganese(II) ion
–−61.69––
per 1 mol of
Potassium ion
–−61.69––
per 1 mol of
–−41.13––

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
ZnCl2 (cr)-415.05[1]-369.398[1]111.46[1]71.34[1]
ZnCl2 (g)-266.1[1]–––
ZnCl2 (ai)-488.19[1]-409.50[1]0.8[1]-226[1]
ZnCl2 (ao)–-403.7[1]––
KMnO4 (cr)-837.2[1]-737.6[1]171.71[1]117.57[1]
KMnO4 (ai)-793.8[1]-730.5[1]293.7[1]-60.2[1]
H+ (g)1536.202[1]–––
H+ (ao)0[1]0[1]0[1]0[1]
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (ao):Un-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
Zn2+ (g)2782.78[1]–––
Zn2+ (ao)-153.89[1]-147.06[1]-112.1[1]46[1]
HClO4 (l)-40.58[1]–––
HClO4 (ai)-129.33[1]-8.52[1]182.0[1]–
HClO4 (cr)
1 hydrate
-382.21[1]–––
HClO4 (l)
2 hydrate
-677.98[1]–––
Mn2+ (g)2519.69[1]–––
Mn2+ (ao)-220.75[1]-228.1[1]-73.6[1]50[1]
K+ (g)514.26[1]–––
K+ (ao)-252.38[1]-283.27[1]102.5[1]21.8[1]
H2O (cr)––––
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]
* (g):Gas, (ao):Un-ionized aqueous solution, (l):Liquid, (ai):Ionized aqueous solution, (cr):Crystalline solid

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)