Ag₂O + SO₃ → Ag₂SO₄

Last updated: June 13, 2022

Reaction of silver(I) oxide and sulfur trioxide: Ag₂OSilver(I) oxide + SO₃Sulfur trioxide
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Ag₂SO₄Silver(I) sulfate

The reaction of silver(I) oxide and sulfur trioxide yields silver(I) sulfate. This reaction is an acid-base reaction and is classified as follows:

Table of contents

Reaction data

Chemical formula	Name	Coefficient	Type	Type in general equation
Ag₂O	Silver(I) oxide	1	Lewis base	Basic oxide Strongly basic oxide
SO₃	Sulfur trioxide	1	Lewis acid	Acidic oxide Strongly acidic oxide

Chemical formula	Name	Coefficient	Type	Type in general equation
Ag₂SO₄	Silver(I) sulfate	1	Lewis conjugate	Oxoacid salt Salt of strong acid and strong base

Reaction of silver(I) oxide and sulfur trioxide ◆ Δ_rG −233.46 kJ/mol K 7.95 × 10⁴⁰ pK −40.90: Ag₂OCrystalline solid + SO₃Liquid
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Ag₂SO₄Crystalline solid

	Standard enthalpy of reaction Δ_rH° kJ · mol⁻¹	Standard Gibbs energy of reaction Δ_rG° kJ · mol⁻¹	Standard entropy of reaction Δ_rS° J · K⁻¹ · mol⁻¹	Standard heat capacity of reaction at constant pressure Δ_rC_p° J · K⁻¹ · mol⁻¹
per 1 mol of Equation	−243.79	−233.46	−34.7	–
per 1 mol of Silver(I) oxide	−243.79	−233.46	−34.7	–
per 1 mol of Sulfur trioxide	−243.79	−233.46	−34.7	–
per 1 mol of Silver(I) sulfate	−243.79	−233.46	−34.7	–

Reaction of silver(I) oxide and sulfur trioxide ◆ Δ_rG −204.89 kJ/mol K 7.86 × 10³⁵ pK −35.90: Ag₂OCrystalline solid + SO₃Crystalline solidβ
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Ag₂SO₄Ionized aqueous solution

	Standard enthalpy of reaction Δ_rH° kJ · mol⁻¹	Standard Gibbs energy of reaction Δ_rG° kJ · mol⁻¹	Standard entropy of reaction Δ_rS° J · K⁻¹ · mol⁻¹	Standard heat capacity of reaction at constant pressure Δ_rC_p° J · K⁻¹ · mol⁻¹
per 1 mol of Equation	−212.54	−204.89	−26.3	–
per 1 mol of Silver(I) oxide	−212.54	−204.89	−26.3	–
per 1 mol of Sulfur trioxide	−212.54	−204.89	−26.3	–
per 1 mol of Silver(I) sulfate	−212.54	−204.89	−26.3	–

Chemical formula	Standard enthalpy of formation Δ_fH° kJ · mol⁻¹	Standard Gibbs energy of formation Δ_fG° kJ · mol⁻¹	Standard molar entropy S° J · K⁻¹ · mol⁻¹	Standard molar heat capacity at constant pressure C_p° J · K⁻¹ · mol⁻¹
Ag₂O (cr)	-31.05^[1]	-11.20^[1]	121.3^[1]	65.86^[1]
SO₃ (cr) β	-454.51^[1]	-374.21^[1]	70.7^[1]	–
SO₃ (l)	-441.04^[1]	-373.75^[1]	113.8^[1]	–
SO₃ (g)	-395.72^[1]	-371.06^[1]	256.76^[1]	50.67^[1]

* (cr):Crystalline solid, (l):Liquid, (g):Gas

Chemical formula	Standard enthalpy of formation Δ_fH° kJ · mol⁻¹	Standard Gibbs energy of formation Δ_fG° kJ · mol⁻¹	Standard molar entropy S° J · K⁻¹ · mol⁻¹	Standard molar heat capacity at constant pressure C_p° J · K⁻¹ · mol⁻¹
Ag₂SO₄ (cr)	-715.88^[1]	-618.41^[1]	200.4^[1]	131.38^[1]
Ag₂SO₄ (ai)	-698.10^[1]	-590.30^[1]	165.7^[1]	-251^[1]

* (cr):Crystalline solid, (ai):Ionized aqueous solution