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MgSO4 + 2RbOH ๐Ÿ’งโ†’ Mg(OH)2โ†“ + Rb2SO4

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Reaction of magnesium sulfate and rubidium hydroxide
MgSO4Magnesium sulfate + 2RbOHRubidium hydroxide
๐Ÿ’ง
โŸถ
Mg(OH)2โ†“Magnesium hydroxide + Rb2SO4Rubidium sulfate

The reaction of magnesium sulfate and rubidium hydroxide yields magnesium hydroxide and rubidium sulfate. This reaction is an acid-base reaction and is classified as follows:

Table of contents
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related categories

Reaction data

Chemical equation

Reaction of magnesium sulfate and rubidium hydroxide
MgSO4Magnesium sulfate + 2RbOHRubidium hydroxide
๐Ÿ’ง
โŸถ
Mg(OH)2โ†“Magnesium hydroxide + Rb2SO4Rubidium sulfate

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 base
๐Ÿ’ง
โŸถ
Insoluble in water/Very slightly soluble in water/Slightly soluble in waterLewis conjugate + Product(Non-redox product)

Oxidation state of each atom

Reaction of magnesium sulfate and rubidium hydroxide

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
MgSO4Magnesium sulfate1
Lewis acid
Very soluble in water
RbOHRubidium hydroxide2
Lewis base
Very soluble in water

Products

Chemical formulaNameCoefficientTypeType in general
equation
Mg(OH)2Magnesium hydroxide1
Lewis conjugate
Insoluble in water
Rb2SO4Rubidium sulfate1
Non-redox product
โ€“

Thermodynamic changes

Changes in standard condition (1)

Reaction of magnesium sulfate and rubidium hydroxide
MgSO4Crystalline solid + 2RbOHCrystalline solid
๐Ÿ’ง
โŸถ
Mg(OH)2โ†“Crystalline solid + Rb2SO4Crystalline solid
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
โˆ’238.9โ€“โ€“โ€“
per 1 mol of
โˆ’238.9โ€“โ€“โ€“
per 1 mol of
โˆ’119.5โ€“โ€“โ€“
โˆ’238.9โ€“โ€“โ€“
per 1 mol of
โˆ’238.9โ€“โ€“โ€“

Changes in standard condition (2)

Reaction of magnesium sulfate and rubidium hydroxide
MgSO4Crystalline solid + 2RbOHCrystalline solid
๐Ÿ’ง
โŸถ
Mg(OH)2โ†“Amorphous solidprecipitated + Rb2SO4Crystalline solid
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
โˆ’234.8โ€“โ€“โ€“
per 1 mol of
โˆ’234.8โ€“โ€“โ€“
per 1 mol of
โˆ’117.4โ€“โ€“โ€“
โˆ’234.8โ€“โ€“โ€“
per 1 mol of
โˆ’234.8โ€“โ€“โ€“

Changes in aqueous solution (1)

Reaction of magnesium sulfate and rubidium hydroxide
โ—†
ฮ”rGโˆ’64.1 kJ/mol
K1.70 ร— 1011
pKโˆ’11.23
MgSO4Ionized aqueous solution + 2RbOHIonized aqueous solution
๐Ÿ’ง
โŸถ
Mg(OH)2โ†“Crystalline solid + Rb2SO4Ionized aqueous solution
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
2.30โˆ’64.1222.9โ€“
per 1 mol of
2.30โˆ’64.1222.9โ€“
per 1 mol of
1.15โˆ’32.0111.5โ€“
2.30โˆ’64.1222.9โ€“
per 1 mol of
2.30โˆ’64.1222.9โ€“

Changes in aqueous solution (2)

Reaction of magnesium sulfate and rubidium hydroxide
MgSO4Ionized aqueous solution + 2RbOHIonized aqueous solution
๐Ÿ’ง
โŸถ
Mg(OH)2โ†“Amorphous solidprecipitated + Rb2SO4Ionized aqueous solution
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
6.3โ€“โ€“โ€“
per 1 mol of
6.3โ€“โ€“โ€“
per 1 mol of
3.1โ€“โ€“โ€“
6.3โ€“โ€“โ€“
per 1 mol of
6.3โ€“โ€“โ€“

Changes in aqueous solution (3)

Reaction of magnesium sulfate and rubidium hydroxide
โ—†
ฮ”rGโˆ’51.38 kJ/mol
K1.00 ร— 109
pKโˆ’9.00
MgSO4Un-ionized aqueous solution + 2RbOHIonized aqueous solution
๐Ÿ’ง
โŸถ
Mg(OH)2โ†“Crystalline solid + Rb2SO4Ionized aqueous solution
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
โˆ’17.8โˆ’51.38112.0โ€“
per 1 mol of
โˆ’17.8โˆ’51.38112.0โ€“
per 1 mol of
โˆ’8.90โˆ’25.6956.00โ€“
โˆ’17.8โˆ’51.38112.0โ€“
per 1 mol of
โˆ’17.8โˆ’51.38112.0โ€“

Changes in aqueous solution (4)

Reaction of magnesium sulfate and rubidium hydroxide
MgSO4Un-ionized aqueous solution + 2RbOHIonized aqueous solution
๐Ÿ’ง
โŸถ
Mg(OH)2โ†“Amorphous solidprecipitated + Rb2SO4Ionized aqueous solution
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
โˆ’13.8โ€“โ€“โ€“
per 1 mol of
โˆ’13.8โ€“โ€“โ€“
per 1 mol of
โˆ’6.90โ€“โ€“โ€“
โˆ’13.8โ€“โ€“โ€“
per 1 mol of
โˆ’13.8โ€“โ€“โ€“

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
MgSO4 (cr)-1284.9[1]-1170.6[1]91.6[1]96.48[1]
MgSO4 (ai)-1376.12[1]-1199.5[1]-118.0[1]โ€“
MgSO4 (ao)-1356.0[1]-1212.21[1]-7.1[1]โ€“
MgSO4 (cr)
1 hydrate
-1602.1[1]-1428.7[1]126.4[1]โ€“
MgSO4 (am)
1 hydrate
-1574.9[1]-1404.9[1]138.1[1]โ€“
MgSO4 (cr)
2 hydrate
-1896.2[1]โ€“โ€“โ€“
MgSO4 (cr)
4 hydrate
-2496.6[1]โ€“โ€“โ€“
MgSO4 (cr)
6 hydrate
-3087.0[1]-2631.8[1]348.1[1]348.11[1]
MgSO4 (cr)
7 hydrate
-3388.71[1]-2871.5[1]372[1]โ€“
RbOH (cr)-418.19[1]โ€“โ€“โ€“
RbOH (g)-238[1]โ€“โ€“โ€“
RbOH (ai)-481.16[1]-441.21[1]110.75[1]โ€“
RbOH (cr)
1 hydrate
-748.85[1]โ€“โ€“โ€“
RbOH (cr)
2 hydrate
-1053.24[1]โ€“โ€“โ€“
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution, (am):Amorphous solid, (g):Gas

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
Mg(OH)2 (cr)-924.54[1]-833.51[1]63.18[1]77.03[1]
Mg(OH)2 (am)
precipitated
-920.5[1]โ€“โ€“โ€“
Mg(OH)2 (g)-561[1]โ€“โ€“โ€“
Mg(OH)2 (ai)-926.84[1]-769.4[1]-159.4[1]โ€“
Rb2SO4 (cr)-1435.61[1]-1316.89[1]197.44[1]134.06[1]
Rb2SO4 (g)-1068.6[1]โ€“โ€“โ€“
Rb2SO4 (ai)-1411.60[1]-1312.50[1]263.2[1]โ€“
* (cr):Crystalline solid, (am):Amorphous solid, (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)