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5CH3COONH4 + 4MnO2 → 2MnCO3 + 2Mn(CH3COO)2 + 4H2O + 5NH3

The reaction of ammonium acetate and manganese(IV) oxide yields manganese(II) carbonate, manganese(II) acetate, water, and ammonia (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 reducing species and reducible species
Reducing speciesReducing agent + Reducible speciesOxidizing agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
CH3COONH4Ammonium acetate5
Reducing
Reducing
MnO2Manganese(IV) oxide4
Oxidizing
Reducible

Products

Chemical formulaNameCoefficientTypeType in general
equation
MnCO3Manganese(II) carbonate2
Redoxed product
Mn(CH3COO)2Manganese(II) acetate2
Reduced
H2OWater4
NH3Ammonia5

Thermodynamic changes

Changes in standard condition (1)

Reaction of ammonium acetate and manganese(IV) oxide
5CH3COONH4Crystalline solid + 4MnO2Crystalline solid
2MnCO3Crystalline solidnatural + 2Mn(CH3COO)2Crystalline solid + 4H2OLiquid + 5NH3Gas
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
−297.5
per 1 mol of
−59.50
−74.38
−148.8
−148.8
per 1 mol of
−74.38
per 1 mol of
−59.50

Changes in standard condition (2)

Reaction of ammonium acetate and manganese(IV) oxide
5CH3COONH4Crystalline solid + 4MnO2Crystalline solid
2MnCO3Crystalline solidprecipitated + 2Mn(CH3COO)2Crystalline solid + 4H2OLiquid + 5NH3Gas
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
−275.7
per 1 mol of
−55.14
−68.92
−137.8
−137.8
per 1 mol of
−68.92
per 1 mol of
−55.14

Changes in standard condition (3)

Reaction of ammonium acetate and manganese(IV) oxide
5CH3COONH4Crystalline solid + 4MnO2Amorphous solidprecipitated
2MnCO3Crystalline solidnatural + 2Mn(CH3COO)2Crystalline solid + 4H2OLiquid + 5NH3Gas
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
−367.6
per 1 mol of
−73.52
−91.90
−183.8
−183.8
per 1 mol of
−91.90
per 1 mol of
−73.52

Changes in standard condition (4)

Reaction of ammonium acetate and manganese(IV) oxide
5CH3COONH4Crystalline solid + 4MnO2Amorphous solidprecipitated
2MnCO3Crystalline solidprecipitated + 2Mn(CH3COO)2Crystalline solid + 4H2OLiquid + 5NH3Gas
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
−345.8
per 1 mol of
−69.16
−86.45
−172.9
−172.9
per 1 mol of
−86.45
per 1 mol of
−69.16

Changes in aqueous solution (1)

Reaction of ammonium acetate and manganese(IV) oxide
5CH3COONH4Ionized aqueous solution + 4MnO2Crystalline solid
2MnCO3Crystalline solidnatural + 2Mn(CH3COO)2Aqueous solution + 4H2OLiquid + 5NH3Gas
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
−387.6
per 1 mol of
−77.52
−96.90
−193.8
−193.8
per 1 mol of
−96.90
per 1 mol of
−77.52

Changes in aqueous solution (2)

Reaction of ammonium acetate and manganese(IV) oxide
5CH3COONH4Ionized aqueous solution + 4MnO2Crystalline solid
2MnCO3Crystalline solidnatural + 2Mn(CH3COO)2Aqueous solution + 4H2OLiquid + 5NH3Un-ionized 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
−558.5
per 1 mol of
−111.7
−139.6
−279.3
−279.3
per 1 mol of
−139.6
per 1 mol of
−111.7

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
CH3COONH4 (cr)-616.14[1]
CH3COONH4 (ai)-618.52[1]-448.61[1]200.0[1]73.6[1]
MnO2 (cr)-520.03[1]-465.14[1]53.05[1]54.14[1]
MnO2 (am)
precipitated
-502.5[1]
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (am):Amorphous solid

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
MnCO3 (cr)
natural
-894.1[1]-816.7[1]85.8[1]81.50[1]
MnCO3 (cr)
precipitated
-883.2[1]
Mn(CH3COO)2 (cr)-1148.1[1]
Mn(CH3COO)2 (aq)-1199.1[1]
Mn(CH3COO)2 (cr)
4 hydrate
-2338.0[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]
NH3 (g)-46.11[1]-16.45[1]192.45[1]35.06[1]
NH3 (ao)-80.29[1]-26.50[1]111.3[1]
* (cr):Crystalline solid, (aq):Aqueous solution, (l):Liquid, (g):Gas, (ao):Un-ionized aqueous solution

References

List of references

  1. 1