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SnO + 2HI → SnI2 + H2O

The reaction of tin(II) oxide and hydrogen iodide yields tin(II) iodide and water. 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

Reaction of basic oxide and acid
Basic oxideBrønsted base + AcidBrønsted acid
SaltConjugate base + H2OConjugate acid
Reaction of amphoteric oxide and acid
Amphoteric oxideBrønsted base + AcidBrønsted acid
SaltConjugate base + H2OConjugate acid

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
SnOTin(II) oxide1
Brønsted base
Basic oxide
Weakly basic oxide
Amphoteric oxide
HIHydrogen iodide2
Brønsted acid
Acid
Strong acid

Products

Chemical formulaNameCoefficientTypeType in general
equation
SnI2Tin(II) iodide1
Conjugate base
Salt
Salt of strong acid and weak base
H2OWater1
Conjugate acid
Water

Thermodynamic changes

Changes in standard condition

Reaction of tin(II) oxide and hydrogen iodide
SnOCrystalline solid + 2HIGas
SnI2Crystalline solid + H2OLiquid
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
−196.5
per 1 mol of
−196.5
per 1 mol of
−98.25
per 1 mol of
−196.5
per 1 mol of
−196.5

Changes in aqueous solution

Reaction of tin(II) oxide and hydrogen iodide
SnOCrystalline solid + 2HIIonized aqueous solution
SnI2Crystalline solid + H2OLiquid
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
−33.2
per 1 mol of
−33.2
per 1 mol of
−16.6
per 1 mol of
−33.2
per 1 mol of
−33.2

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
SnO (cr)-285.8[1]-256.9[1]56.5[1]44.31[1]
SnO (g)15.1[1]-8.4[1]232.11[1]31.59[1]
HI (g)26.48[1]1.70[1]206.594[1]29.158[1]
HI (ai)-55.19[1]-51.57[1]111.3[1]-142.3[1]
* (cr):Crystalline solid, (g):Gas, (ai):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
SnI2 (cr)-143.5[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]
* (cr):Crystalline solid, (l):Liquid, (g):Gas

References

List of references

  1. 1