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3SnBr4 + 12HNO3 🔥→ 3SnO2 + 4HBrO3 + 6N2O3↑ + 8HBr↑

The reaction of tin(IV) bromide and nitric acid yields tin(IV) oxide, bromic acid, dinitrogen trioxide, and hydrogen bromide (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 hardly oxidizable species and oxidizing species
Hardly oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
SnBr4Tin(IV) bromide3
Reducing
Hardly oxidizable
HNO3Nitric acid12
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
SnO2Tin(IV) oxide3
HBrO3Bromic acid4
Oxidized
N2O3Dinitrogen trioxide6
Reduced
HBrHydrogen bromide8

Thermodynamic changes

Changes in standard condition (1)

Reaction of tin(IV) bromide and nitric acid
ΔrG1310.4 kJ/mol
K0.27 × 10−229
pK229.57
3SnBr4Crystalline solid + 12HNO3Ionized aqueous solution
🔥
3SnO2Crystalline solid + 4HBrO3Ionized aqueous solution + 6N2O3Gas + 8HBrGas
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
1821.31310.41717.0
per 1 mol of
607.10436.80572.33
per 1 mol of
151.78109.20143.08
per 1 mol of
607.10436.80572.33
per 1 mol of
455.32327.60429.25
303.55218.40286.17
per 1 mol of
227.66163.80214.63

Changes in standard condition (2)

Reaction of tin(IV) bromide and nitric acid
ΔrG906.3 kJ/mol
K0.17 × 10−158
pK158.78
3SnBr4Crystalline solid + 12HNO3Ionized aqueous solution
🔥
3SnO2Crystalline solid + 4HBrO3Ionized aqueous solution + 6N2O3Gas + 8HBrIonized 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
1140.1906.3786.6
per 1 mol of
380.03302.1262.2
per 1 mol of
95.00875.5265.55
per 1 mol of
380.03302.1262.2
per 1 mol of
285.02226.6196.7
190.02151.0131.1
per 1 mol of
142.51113.398.33

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
SnBr4 (cr)-377.4[1]-350.2[1]264.4[1]
SnBr4 (g)-314.6[1]-331.4[1]411.94[1]103.39[1]
SnBr4 (cr)
8 hydrate
-2767.7[1]
SnBr4 (l)
8 hydrate
-2725.0[1]
HNO3 (l)-174.10[1]-80.71[1]155.60[1]109.87[1]
HNO3 (g)-135.06[1]-74.72[1]266.38[1]53.35[1]
HNO3 (ai)-207.36[1]-111.25[1]146.4[1]-86.6[1]
HNO3 (l)
1 hydrate
-473.46[1]-328.77[1]216.90[1]182.46[1]
HNO3 (l)
3 hydrate
-1056.04[1]-811.09[1]346.98[1]325.14[1]
* (cr):Crystalline solid, (g):Gas, (l):Liquid, (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
SnO2 (cr)-580.7[1]-519.6[1]52.3[1]52.59[1]
HBrO3 (ai)-67.07[1]18.60[1]161.71[1]
N2O3 (l)50.29[1]
N2O3 (g)83.72[1]139.46[1]312.28[1]65.61[1]
HBr (g)-36.40[1]-53.45[1]198.695[1]29.142[1]
HBr (ai)-121.55[1]-103.96[1]82.4[1]-141.8[1]
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (l):Liquid, (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)