8KI + 9RbNO3 + 10H+ ๐ฅโ 8KNO3 + 4I2 + NH4+ + 9Rb+ + 3H2O
Last updated:
- Reaction of potassium iodide and rubidium nitrate under acidic condition
- 8KIPotassium iodide + 9RbNO3Rubidium nitrate + 10H+Hydrogen ion8KNO3Potassium nitrate + 4 + NH4+Ammonium ion + 9Rb+Rubidium ion + 3H2OWater๐ฅโถ
The reaction of potassium iodide, rubidium nitrate, and hydrogen ion yields potassium nitrate, , ammonium ion, rubidium ion, and water (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of potassium iodide and rubidium nitrate under acidic condition
- 8KIPotassium iodide + 9RbNO3Rubidium nitrate + 10H+Hydrogen ion8KNO3Potassium nitrate + 4 + NH4+Ammonium ion + 9Rb+Rubidium ion + 3H2OWater๐ฅโถ
General equation
- Reaction of oxidizable species and oxidizing species under acidic condition
- Oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H+Non-redox agent โถ ProductOxidation product + ProductReduction product + H2ONon-redox product
Oxidation state of each atom
- Reaction of potassium iodide and rubidium nitrate under acidic condition
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
KI | Potassium iodide | 8 | Reducing | Oxidizable |
RbNO3 | Rubidium nitrate | 9 | Oxidizing | Oxidizing under acidic condition |
H+ | Hydrogen ion | 10 | โ | Hydrogen ion |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
KNO3 | Potassium nitrate | 8 | โ | โ |
4 | Oxidized | โ | ||
NH4+ | Ammonium ion | 1 | Reduced | โ |
Rb+ | Rubidium ion | 9 | โ | โ |
H2O | Water | 3 | โ | Water |
Thermodynamic changes
Changes in standard condition
- Reaction of potassium iodide and rubidium nitrate under acidic conditionโ
ฮrG โ201.20 kJ/mol K 1.77 ร 1035 pK โ35.25
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | โ250.8 | โ201.20 | โ164.0 | โ |
per 1 mol of | โ31.35 | โ25.150 | โ20.50 | โ |
per 1 mol of | โ27.87 | โ22.356 | โ18.22 | โ |
per 1 mol of Hydrogen ion | โ25.08 | โ20.120 | โ16.40 | โ |
per 1 mol of | โ31.35 | โ25.150 | โ20.50 | โ |
โ62.70 | โ50.300 | โ41.00 | โ | |
per 1 mol of Ammonium ion | โ250.8 | โ201.20 | โ164.0 | โ |
per 1 mol of Rubidium ion | โ27.87 | โ22.356 | โ18.22 | โ |
per 1 mol of | โ83.60 | โ67.067 | โ54.67 | โ |
Thermodynamic data of reactants
Chemical formula | Standard enthalpy of formation ฮfHยฐ kJ ยท molโ1 | Standard Gibbs energy of formation ฮfGยฐ kJ ยท molโ1 | Standard molar entropy Sยฐ J ยท Kโ1 ยท molโ1 | Standard molar heat capacity at constant pressure Cpยฐ J ยท Kโ1 ยท molโ1 |
---|---|---|---|---|
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] |
RbNO3 (cr) | -495.05[1] | -395.78[1] | 147.3[1] | 102.1[1] |
RbNO3 (ai) | -458.52[1] | -395.24[1] | 267.8[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 formula | Standard enthalpy of formation ฮfHยฐ kJ ยท molโ1 | Standard Gibbs energy of formation ฮfGยฐ kJ ยท molโ1 | Standard molar entropy Sยฐ J ยท Kโ1 ยท molโ1 | Standard molar heat capacity at constant pressure Cpยฐ J ยท Kโ1 ยท molโ1 |
---|---|---|---|---|
KNO3 (cr) | -494.63[1] | -394.86[1] | 133.05[1] | 96.40[1] |
KNO3 (ai) | -459.74[1] | -394.53[1] | 248.9[1] | -64.9[1] |
(cr) | 0[1] | 0[1] | 116.135[1] | 54.438[1] |
(g) | 62.438[1] | 19.327[1] | 260.69[1] | 36.90[1] |
(ao) | 22.6[1] | 16.40[1] | 137.2[1] | โ |
NH4+ (ao) | -132.51[1] | -79.31[1] | 113.4[1] | 79.9[1] |
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, (g):Gas, (ao):Un-ionized aqueous solution, (l):Liquid
References
List of references
- 1Janiel J. Reed (1989)The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI UnitsNational Institute of Standards and Technology (NIST)
- ^ ฮfHยฐ, -327.900 kJ ยท molโ1
- ^ ฮfGยฐ, -324.892 kJ ยท molโ1
- ^ Sยฐ, 106.32 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 52.93 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -125.5 kJ ยท molโ1
- ^ ฮfGยฐ, -166.1 kJ ยท molโ1
- ^ Sยฐ, 258.3 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 37.11 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -307.57 kJ ยท molโ1
- ^ ฮfGยฐ, -334.85 kJ ยท molโ1
- ^ Sยฐ, 213.8 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, -120.5 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -495.05 kJ ยท molโ1
- ^ ฮfGยฐ, -395.78 kJ ยท molโ1
- ^ Sยฐ, 147.3 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 102.1 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -458.52 kJ ยท molโ1
- ^ ฮfGยฐ, -395.24 kJ ยท molโ1
- ^ Sยฐ, 267.8 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, 1536.202 kJ ยท molโ1
- ^ ฮfHยฐ, 0 kJ ยท molโ1
- ^ ฮfGยฐ, 0 kJ ยท molโ1
- ^ Sยฐ, 0 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 0 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -494.63 kJ ยท molโ1
- ^ ฮfGยฐ, -394.86 kJ ยท molโ1
- ^ Sยฐ, 133.05 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 96.40 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -459.74 kJ ยท molโ1
- ^ ฮfGยฐ, -394.53 kJ ยท molโ1
- ^ Sยฐ, 248.9 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, -64.9 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, 0 kJ ยท molโ1
- ^ ฮfGยฐ, 0 kJ ยท molโ1
- ^ Sยฐ, 116.135 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 54.438 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, 62.438 kJ ยท molโ1
- ^ ฮfGยฐ, 19.327 kJ ยท molโ1
- ^ Sยฐ, 260.69 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 36.90 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, 22.6 kJ ยท molโ1
- ^ ฮfGยฐ, 16.40 kJ ยท molโ1
- ^ Sยฐ, 137.2 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -132.51 kJ ยท molโ1
- ^ ฮfGยฐ, -79.31 kJ ยท molโ1
- ^ Sยฐ, 113.4 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 79.9 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, 490.101 kJ ยท molโ1
- ^ ฮfHยฐ, -251.17 kJ ยท molโ1
- ^ ฮfGยฐ, -283.98 kJ ยท molโ1
- ^ Sยฐ, 121.50 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -285.830 kJ ยท molโ1
- ^ ฮfGยฐ, -237.129 kJ ยท molโ1
- ^ Sยฐ, 69.91 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 75.291 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -241.818 kJ ยท molโ1
- ^ ฮfGยฐ, -228.572 kJ ยท molโ1
- ^ Sยฐ, 188.825 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 33.577 J ยท Kโ1 ยท molโ1