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3H2S + 8AgNO3 → 3H2SO4 + 8Ag + 4N2O3

The reaction of hydrogen sulfide and silver(I) nitrate yields sulfuric acid, silver, and dinitrogen trioxide (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 oxidizing species
Reducing speciesReducing agent + Oxidizing speciesOxidizing agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
H2SHydrogen sulfide3
Reducing
Reducing
AgNO3Silver(I) nitrate8
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
H2SO4Sulfuric acid3
Oxidized
AgSilver8
Reduced
N2O3Dinitrogen trioxide4
Reduced

Thermodynamic changes

Changes in standard condition

Reaction of hydrogen sulfide and silver(I) nitrate
ΔrG−1144.21 kJ/mol
K2.86 × 10200
pK−200.46
3H2SGas + 8AgNO3Crystalline solid
3H2SO4Liquid + 8AgCrystalline solid + 4N2O3Gas
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
−1050.08−1144.21315.5034.89
per 1 mol of
−350.027−381.403105.1711.63
per 1 mol of
−131.260−143.02639.4384.361
per 1 mol of
−350.027−381.403105.1711.63
per 1 mol of
−131.260−143.02639.4384.361
−262.520−286.05378.8758.723

Changes in aqueous solution (1)

Reaction of hydrogen sulfide and silver(I) nitrate
ΔrG−1318.98 kJ/mol
K1.19 × 10231
pK−231.08
3H2SUn-ionized aqueous solution + 8AgNO3Ionized aqueous solution
3H2SO4Ionized aqueous solution + 8AgCrystalline solid + 4N2O3Gas
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
−1459.4−1318.98−467
per 1 mol of
−486.47−439.660−156
per 1 mol of
−182.43−164.873−58.4
per 1 mol of
−486.47−439.660−156
per 1 mol of
−182.43−164.873−58.4
−364.85−329.745−117

Changes in aqueous solution (2)

Reaction of hydrogen sulfide and silver(I) nitrate
ΔrG−1332.34 kJ/mol
K2.61 × 10233
pK−233.42
3H2SUn-ionized aqueous solution + 8AgNO3Un-ionized aqueous solution
3H2SO4Ionized aqueous solution + 8AgCrystalline solid + 4N2O3Gas
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
−1332.34
per 1 mol of
−444.113
per 1 mol of
−166.542
per 1 mol of
−444.113
per 1 mol of
−166.542
−333.085

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
H2S (g)-20.63[1]-33.56[1]205.79[1]34.23[1]
H2S (ao)-39.7[1]-27.83[1]121[1]
AgNO3 (cr)-124.39[1]-33.41[1]140.92[1]93.05[1]
AgNO3 (ai)-101.80[1]-34.16[1]219.2[1]-64.9[1]
AgNO3 (ao)-32.49[1]
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid, (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
H2SO4 (cr)
H2SO4 (l)-813.989[1]-690.003[1]156.904[1]138.91[1]
H2SO4 (ai)-909.27[1]-744.53[1]20.1[1]-293[1]
H2SO4 (l)
1 hydrate
-1127.621[1]-950.383[1]211.54[1]214.85[1]
H2SO4 (l)
2 hydrate
-1427.100[1]-1199.650[1]276.40[1]260.83[1]
H2SO4 (l)
3 hydrate
-1720.402[1]-1443.980[1]345.39[1]318.95[1]
H2SO4 (l)
4 hydrate
-2011.199[1]-1685.863[1]414.59[1]382.21[1]
H2SO4 (l)
6.5 hydrate
-2733.256[1]-2285.734[1]587.89[1]570.28[1]
Ag (cr)0[1]0[1]42.55[1]25.351[1]
Ag (g)284.55[1]245.65[1]172.997[1]20.786[1]
N2O3 (l)50.29[1]
N2O3 (g)83.72[1]139.46[1]312.28[1]65.61[1]
* (cr):Crystalline solid, (l):Liquid, (ai):Ionized aqueous solution, (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)