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2NaOH + SrO → Na2O + Sr(OH)2

The reaction of sodium hydroxide and strontium oxide yields sodium oxide and strontium hydroxide. 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
NaOHSodium hydroxide2
Lewis base
Hydroxide base
SrOStrontium oxide1
Lewis acid
Dehydrating basic oxide

Products

Chemical formulaNameCoefficientTypeType in general
equation
Na2OSodium oxide1
Basic oxide
Sr(OH)2Strontium hydroxide1
Lewis conjugate
Hydroxide base

Thermodynamic changes

Changes in standard condition

Reaction of sodium hydroxide and strontium oxide
2NaOHCrystalline solid + SrOCrystalline solid
Na2OCrystalline solid + Sr(OH)2Crystalline 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
70.0
per 1 mol of
35.0
per 1 mol of
70.0
per 1 mol of
70.0
70.0

Changes in aqueous solution

Reaction of sodium hydroxide and strontium oxide
2NaOHIonized aqueous solution + SrOCrystalline solid
Na2OCrystalline solid + Sr(OH)2Crystalline 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
159.0
per 1 mol of
79.50
per 1 mol of
159.0
per 1 mol of
159.0
159.0

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
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]
NaOH (l)
5 hydrate
-1894.31[1]-1596.34[1]386.06[1]
NaOH (l)
7 hydrate
-2469.02[1]-2073.80[1]526.31[1]
SrO (cr)-592.0[1]-561.9[1]54.4[1]45.02[1]
SrO (g)-8[1]
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (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
Na2O (cr)-414.22[1]-375.46[1]75.06[1]69.12[1]
Na2O (g)-35.6[1]-52.3[1]261.2[1]55.2[1]
Sr(OH)2 (cr)-959.0[1]
Sr(OH)2 (g)-565[1]
Sr(OH)2 (cr)
1 hydrate
-1264.8[1]
Sr(OH)2 (cr)
8 hydrate
-3352.2[1]
* (cr):Crystalline solid, (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)