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16CuI + 5HNO3 + 37H+ → 16Cu2+ + 8I2 + 4NH4+ + 13H2O + NO2+

Reaction of copper(I) iodide and nitric acid under acidic condition
16CuICopper(I) iodide + 5HNO3Nitric acid + 37H+Hydrogen ion
16Cu2+Copper(II) ion + 8I2Iodine + 4NH4+Ammonium ion + 13H2OWater + NO2+Nitronium ion

The reaction of copper(I) iodide, nitric acid, and hydrogen ion yields copper(II) ion, iodine, ammonium ion, water, and nitronium ion (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

Reaction of copper(I) iodide and nitric acid under acidic condition
16CuICopper(I) iodide + 5HNO3Nitric acid + 37H+Hydrogen ion
16Cu2+Copper(II) ion + 8I2Iodine + 4NH4+Ammonium ion + 13H2OWater + NO2+Nitronium ion

General equation

Reaction of oxidizable species and oxidizing species under acidic condition
Oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H+Non-redox agent
ProductOxidation product + ProductReduction product + H2ONon-redox product

Oxidation state of each atom

Reaction of copper(I) iodide and nitric acid under acidic condition

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
CuICopper(I) iodide16
Reducing
Oxidizable
HNO3Nitric acid5
Oxidizing
Oxidizing under acidic condition
H+Hydrogen ion37
Hydrogen ion

Products

Chemical formulaNameCoefficientTypeType in general
equation
Cu2+Copper(II) ion16
Oxidized
I2Iodine8
Oxidized
NH4+Ammonium ion4
Reduced
H2OWater13
Water
NO2+Nitronium ion1

Thermodynamic changes

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
CuI (cr)-67.8[1]-69.5[1]96.7[1]54.06[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]
H+ (g)1536.202[1]
H+ (ao)0[1]0[1]0[1]0[1]
* (cr):Crystalline solid, (l):Liquid, (g):Gas, (ai):Ionized aqueous solution, (ao):Un-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
Cu2+ (g)3054.07[1]
Cu2+ (ao)64.77[1]65.49[1]-99.6[1]
I2 (cr)0[1]0[1]116.135[1]54.438[1]
I2 (g)62.438[1]19.327[1]260.69[1]36.90[1]
I2 (ao)22.6[1]16.40[1]137.2[1]
NH4+ (ao)-132.51[1]-79.31[1]113.4[1]79.9[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]
NO2+ (g)967.8[1]
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid, (l):Liquid

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)