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  3. KI + 7RbClO3 + 7H^+ ๐Ÿ”ฅโ†’ KClO3 + HIO3 + 6ClO2โ†‘ + 7Rb^+ + 3H2O

KI + 7RbClO3 + 7H+ ๐Ÿ”ฅโ†’ KClO3 + HIO3 + 6ClO2โ†‘ + 7Rb+ + 3H2O

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Reaction of potassium iodide and rubidium chlorate under acidic condition
KIPotassium iodide + 7RbClO3Rubidium chlorate + 7H+Hydrogen ion
๐Ÿ”ฅ
โŸถ
KClO3Potassium chlorate + HIO3Iodic acid + 6ClO2โ†‘Chlorine dioxide + 7Rb+Rubidium ion + 3H2OWater

The reaction of potassium iodide, rubidium chlorate, and hydrogen ion yields potassium chlorate, iodic acid, chlorine dioxide, rubidium ion, and water (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 potassium iodide and rubidium chlorate under acidic condition
KIPotassium iodide + 7RbClO3Rubidium chlorate + 7H+Hydrogen ion
๐Ÿ”ฅ
โŸถ
KClO3Potassium chlorate + HIO3Iodic acid + 6ClO2โ†‘Chlorine dioxide + 7Rb+Rubidium ion + 3H2OWater

General equation

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

Oxidation state of each atom

Reaction of potassium iodide and rubidium chlorate under acidic condition

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
KIPotassium iodide1
Reducing
Oxidizable
RbClO3Rubidium chlorate7
Oxidizing
Oxidizing under acidic condition
H+Hydrogen ion7
โ€“
Hydrogen ion

Products

Chemical formulaNameCoefficientTypeType in general
equation
KClO3Potassium chlorate1
โ€“
โ€“
HIO3Iodic acid1
Oxidized
โ€“
ClO2Chlorine dioxide6
Reduced
โ€“
Rb+Rubidium ion7
โ€“
โ€“
H2OWater3
โ€“
Water

Thermodynamic changes

Changes in standard condition (1)

Reaction of potassium iodide and rubidium chlorate under acidic condition
โ—†
ฮ”rGโˆ’22.3 kJ/mol
K8.07 ร— 103
pKโˆ’3.91
KIIonized aqueous solution + 7RbClO3Ionized aqueous solution + 7H+Un-ionized aqueous solution
๐Ÿ”ฅ
โŸถ
KClO3Ionized aqueous solution + HIO3Un-ionized aqueous solution + 6ClO2โ†‘Gas + 7Rb+Un-ionized aqueous solution + 3H2OLiquid
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
225.2โˆ’22.3833.3โ€“
per 1 mol of
225.2โˆ’22.3833.3โ€“
per 1 mol of
32.17โˆ’3.19119.0โ€“
per 1 mol of
Hydrogen ion
32.17โˆ’3.19119.0โ€“
per 1 mol of
225.2โˆ’22.3833.3โ€“
per 1 mol of
225.2โˆ’22.3833.3โ€“
per 1 mol of
37.53โˆ’3.72138.9โ€“
per 1 mol of
Rubidium ion
32.17โˆ’3.19119.0โ€“
per 1 mol of
75.07โˆ’7.43277.8โ€“

Changes in standard condition (2)

Reaction of potassium iodide and rubidium chlorate under acidic condition
โ—†
ฮ”rGโˆ’24.7 kJ/mol
K2.12 ร— 104
pKโˆ’4.33
KIIonized aqueous solution + 7RbClO3Ionized aqueous solution + 7H+Un-ionized aqueous solution
๐Ÿ”ฅ
โŸถ
KClO3Ionized aqueous solution + HIO3Un-ionized aqueous solution + 6ClO2โ†‘Un-ionized aqueous solution + 7Rb+Un-ionized aqueous solution + 3H2OLiquid
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
59.6โˆ’24.7281.0โ€“
per 1 mol of
59.6โˆ’24.7281.0โ€“
per 1 mol of
8.51โˆ’3.5340.14โ€“
per 1 mol of
Hydrogen ion
8.51โˆ’3.5340.14โ€“
per 1 mol of
59.6โˆ’24.7281.0โ€“
per 1 mol of
59.6โˆ’24.7281.0โ€“
per 1 mol of
9.93โˆ’4.1246.83โ€“
per 1 mol of
Rubidium ion
8.51โˆ’3.5340.14โ€“
per 1 mol of
19.9โˆ’8.2393.67โ€“

Thermodynamic data of reactants

Chemical formulaStandard enthalpy
of formation
ฮ”fHยฐ
kJ ยท molโˆ’1		Standard Gibbs
energy of
formation
ฮ”fGยฐ
kJ ยท molโˆ’1		Standard
molar entropy
Sยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard molar
heat capacity at
constant pressure
Cpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
KI (cr)-327.900[1]-324.892[1]106.32[1]52.93[1]
KI (g)-125.5[1]-166.1[1]258.3[1]37.11[1]
KI (ai)-307.57[1]-334.85[1]213.8[1]-120.5[1]
RbClO3 (cr)-402.9[1]-300.3[1]151.9[1]103.18[1]
RbClO3 (ai)-355.14[1]-291.85[1]283.7[1]โ€“
H+ (g)1536.202[1]โ€“โ€“โ€“
H+ (ao)0[1]0[1]0[1]0[1]
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution

Thermodynamic data of products

Chemical formulaStandard enthalpy
of formation
ฮ”fHยฐ
kJ ยท molโˆ’1		Standard Gibbs
energy of
formation
ฮ”fGยฐ
kJ ยท molโˆ’1		Standard
molar entropy
Sยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard molar
heat capacity at
constant pressure
Cpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
KClO3 (cr)-397.73[1]-296.25[1]143.1[1]100.25[1]
KClO3 (ai)-356.35[1]-291.22[1]264.8[1]โ€“
HIO3 (cr)-230.1[1]โ€“โ€“โ€“
HIO3 (ao)-211.3[1]-132.6[1]166.9[1]โ€“
ClO2 (g)102.5[1]120.5[1]256.84[1]41.97[1]
ClO2 (ao)74.9[1]120.1[1]164.8[1]โ€“
Rb+ (g)490.101[1]โ€“โ€“โ€“
Rb+ (ao)-251.17[1]-283.98[1]121.50[1]โ€“
H2O (cr)โ€“โ€“โ€“โ€“
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, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution, (g):Gas, (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)