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Mn(NO3)2 + K2SiO3 💧→ MnSiO3↓ + 2KNO3

The reaction of manganese(II) nitrate and potassium metasilicate yields manganese(II) metasilicate and potassium nitrate. 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 categories

Reaction data

Chemical equation

General equation

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Mn(NO3)2Manganese(II) nitrate1
Lewis acid
Very soluble in water
K2SiO3Potassium metasilicate1
Lewis base
Soluble in water

Products

Chemical formulaNameCoefficientTypeType in general
equation
MnSiO3Manganese(II) metasilicate1
Lewis conjugate
Insoluble in water
KNO3Potassium nitrate2
Non-redox product

Thermodynamic changes

Changes in standard condition

Reaction of manganese(II) nitrate and potassium metasilicate
Mn(NO3)2Crystalline solid + K2SiO3Crystalline solid
💧
MnSiO3Crystalline solid + 2KNO3Crystalline solid
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
per 1 mol of

Changes in aqueous solution

Reaction of manganese(II) nitrate and potassium metasilicate
Mn(NO3)2Ionized aqueous solution + K2SiO3Crystalline solid
💧
MnSiO3Crystalline solid + 2KNO3Ionized 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
223−41
223−41
223−41
223−41
per 1 mol of
112−21

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
Mn(NO3)2 (cr)-576.26[1]
Mn(NO3)2 (ai)-635.5[1]-450.9[1]218[1]-121[1]
Mn(NO3)2 (vit)
6 hydrate
-2371.9[1]
Mn(NO3)2 (l)
6 hydrate
-2331.62[1]
K2SiO3 (cr)146.0[1]118.4[1]
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (vit):Vitreous liquid, (l):Liquid

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
MnSiO3 (cr)-1320.9[1]-1240.5[1]89.1[1]86.44[1]
MnSiO3 (vit)-1285.3[1]
KNO3 (cr)-494.63[1]-394.86[1]133.05[1]96.40[1]
KNO3 (ai)-459.74[1]-394.53[1]248.9[1]-64.9[1]
* (cr):Crystalline solid, (vit):Vitreous liquid, (ai):Ionized aqueous solution

References

List of references

  1. 1