3CuSO4 + 2K3PO4 ๐งโ Cu3(PO4)2โ + 3K2SO4
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- Reaction of copper(II) sulfate and potassium phosphate
The reaction of copper(II) sulfate and potassium phosphate yields copper(II) phosphate and potassium sulfate. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of copper(II) sulfate and potassium phosphate
General equation
- Precipitation reaction
- Miscible with water/Very soluble in water/Soluble in waterLewis acid + Miscible with water/Very soluble in water/Soluble in waterLewis base๐งโถ Insoluble in water/Very slightly soluble in water/Slightly soluble in waterLewis conjugate + Product(Non-redox product)
Oxidation state of each atom
- Reaction of copper(II) sulfate and potassium phosphate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CuSO4 | Copper(II) sulfate | 3 | Lewis acid | Soluble in water |
| K3PO4 | Potassium phosphate | 2 | Lewis base | Very soluble in water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Cu3(PO4)2 | Copper(II) phosphate | 1 | Lewis conjugate | Insoluble in water |
| K2SO4 | Potassium sulfate | 3 | Non-redox product | โ |
Thermodynamic changes
Changes in standard condition
- Reaction of copper(II) sulfate and potassium phosphate
| 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 | โ | โ | โ | โ |
per 1 mol of | โ | โ | โ | โ |
per 1 mol of | โ | โ | โ | โ |
per 1 mol of | โ | โ | โ | โ |
per 1 mol of | โ | โ | โ | โ |
Changes in aqueous solution (1)
- Reaction of copper(II) sulfate and potassium phosphateโ
ฮrG โ170.6 kJ/mol K 7.72 ร 1029 pK โ29.89
| 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 | โ | โ170.6 | โ | โ |
per 1 mol of | โ | โ56.87 | โ | โ |
per 1 mol of | โ | โ85.30 | โ | โ |
per 1 mol of | โ | โ170.6 | โ | โ |
per 1 mol of | โ | โ56.87 | โ | โ |
Changes in aqueous solution (2)
- Reaction of copper(II) sulfate and potassium phosphateโ
ฮrG โ261.7 kJ/mol K 7.04 ร 1045 pK โ45.85
| 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 | โ | โ261.7 | โ | โ |
per 1 mol of | โ | โ87.23 | โ | โ |
per 1 mol of | โ | โ130.8 | โ | โ |
per 1 mol of | โ | โ261.7 | โ | โ |
per 1 mol of | โ | โ87.23 | โ | 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 |
|---|---|---|---|---|
| CuSO4 (cr) | -771.36[1] | -661.8[1] | 109[1] | 100.0[1] |
| CuSO4 (ai) | -844.50[1] | -679.04[1] | -79.5[1] | โ |
| CuSO4 (ao) | โ | -692.18[1] | โ | โ |
| CuSO4 (cr) 1 hydrate | -1085.83[1] | -918.11[1] | 146.0[1] | 134[1] |
| CuSO4 (cr) 3 hydrate | -1684.31[1] | -1399.96[1] | 221.3[1] | 205[1] |
| CuSO4 (cr) 5 hydrate | -2279.65[1] | -1879.745[1] | 300.4[1] | 280[1] |
| K3PO4 (cr) | -1950.2[1] | โ | โ | โ |
| K3PO4 (ai) | -2034.7[1] | -1868.7[1] | 87.2[1] | โ |
* (cr):Crystalline solid, (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 |
|---|---|---|---|---|
| Cu3(PO4)2 (cr) | โ | -2051.3[1] | โ | โ |
| K2SO4 (cr) | -1437.79[1] | -1321.37[1] | 175.56[1] | 131.46[1] |
| K2SO4 (g) | -1096[1] | -1033[1] | 364[1] | 108.8[1] |
| K2SO4 (ai) | -1414.02[1] | -1311.07[1] | 225.1[1] | -251[1] |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution
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, -771.36 kJ ยท molโ1
- ^ ฮfGยฐ, -661.8 kJ ยท molโ1
- ^ Sยฐ, 109. J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 100.0 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -844.50 kJ ยท molโ1
- ^ ฮfGยฐ, -679.04 kJ ยท molโ1
- ^ Sยฐ, -79.5 J ยท Kโ1 ยท molโ1
- ^ ฮfGยฐ, -692.18 kJ ยท molโ1
- ^ ฮfHยฐ, -1085.83 kJ ยท molโ1
- ^ ฮfGยฐ, -918.11 kJ ยท molโ1
- ^ Sยฐ, 146.0 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 134. J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -1684.31 kJ ยท molโ1
- ^ ฮfGยฐ, -1399.96 kJ ยท molโ1
- ^ Sยฐ, 221.3 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 205. J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -2279.65 kJ ยท molโ1
- ^ ฮfGยฐ, -1879.745 kJ ยท molโ1
- ^ Sยฐ, 300.4 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 280. J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -1950.2 kJ ยท molโ1
- ^ ฮfHยฐ, -2034.7 kJ ยท molโ1
- ^ ฮfGยฐ, -1868.7 kJ ยท molโ1
- ^ Sยฐ, 87.2 J ยท Kโ1 ยท molโ1
- ^ ฮfGยฐ, -2051.3 kJ ยท molโ1
- ^ ฮfHยฐ, -1437.79 kJ ยท molโ1
- ^ ฮfGยฐ, -1321.37 kJ ยท molโ1
- ^ Sยฐ, 175.56 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 131.46 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -1096. kJ ยท molโ1
- ^ ฮfGยฐ, -1033. kJ ยท molโ1
- ^ Sยฐ, 364. J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 108.8 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -1414.02 kJ ยท molโ1
- ^ ฮfGยฐ, -1311.07 kJ ยท molโ1
- ^ Sยฐ, 225.1 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, -251. J ยท Kโ1 ยท molโ1