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2H2S + 3Ni(NO3)2 → 2SO3 + 3Ni + N2 + 4HNO3

The reaction of hydrogen sulfide and nickel(II) nitrate yields sulfur trioxide, nickel, nitrogen, and nitric acid (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 sulfide2
Reducing
Reducing
Ni(NO3)2Nickel(II) nitrate3
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
SO3Sulfur trioxide2
Oxidized
NiNickel3
Reduced
N2Nitrogen1
Reduced
HNO3Nitric acid4

Thermodynamic changes

Changes in standard condition

Reaction of hydrogen sulfide and nickel(II) nitrate
2H2SGas + 3Ni(NO3)2Crystalline solid
2SO3Liquid + 3NiCrystalline solid + N2Gas + 4HNO3Liquid
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
−291.9
per 1 mol of
−145.9
per 1 mol of
−97.30
per 1 mol of
−145.9
per 1 mol of
−97.30
per 1 mol of
−291.9
per 1 mol of
−72.97

Changes in aqueous solution

Reaction of hydrogen sulfide and nickel(II) nitrate
ΔrG−332.3 kJ/mol
K1.65 × 1058
pK−58.22
2H2SUn-ionized aqueous solution + 3Ni(NO3)2Ionized aqueous solution
2SO3Crystalline solidβ + 3NiCrystalline solid + N2Gas + 4HNO3Ionized 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
−253.3−332.3274
per 1 mol of
−126.7−166.2137
per 1 mol of
−84.43−110.891.3
per 1 mol of
−126.7−166.2137
per 1 mol of
−84.43−110.891.3
per 1 mol of
−253.3−332.3274
per 1 mol of
−63.33−83.0868.5

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]
Ni(NO3)2 (cr)-415.1[1]
Ni(NO3)2 (ai)-468.6[1]-268.5[1]164.0[1]
Ni(NO3)2 (cr)
3 hydrate
-1326.3[1]
Ni(NO3)2 (cr)
6 hydrate
-2211.7[1]464[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
SO3 (cr)
β
-454.51[1]-374.21[1]70.7[1]
SO3 (l)-441.04[1]-373.75[1]113.8[1]
SO3 (g)-395.72[1]-371.06[1]256.76[1]50.67[1]
Ni (cr)0[1]0[1]29.87[1]26.07[1]
Ni (g)429.7[1]384.5[1]182.193[1]23.359[1]
N2 (g)0[1]0[1]191.61[1]29.125[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, (l):Liquid, (g):Gas, (ai):Ionized aqueous solution

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)