The value of ksp for silver sulfide, ag2s, is 8.00×10−51. calculate the solubility of ag2s in grams per liter.

The solubility of Ag₂S : 3,125 .10⁻¹⁵ g/L

Solubility (s) is the maximum amount of a substance that can dissolve in some solvents.

Ksp is the product of ions in an equilibrium saturated state

Solubility (s) and solubility constants (Ksp) of the AxBa solution can be stated as follows.

AₓBₐ (s) ← ⎯⎯⎯⎯ → aAᵃ⁺ (aq) + b Bᵇ⁻ (aq)

  s                            as              bs

Solubility units in the form of mol/liter or gram/liter

Ksp for Silver sulfide,Ag₂S, is 8.00 × 10⁻⁵¹

Ag₂S decomposition reaction  :

Ag2S ⇒ 2Ag⁺+ S²⁻

s              2s       s

Ksp = [Ag⁺]² [S²⁻]

Ksp = (2s)². s

Ksp = 4s³

8.00 × 10⁻⁵¹ = 4s³

s³ = 2.10⁻⁵¹

s = 1,259.10⁻¹⁷ mol / L

Molar mass Ag₂S = 248  g/mole

s = 1,259.10⁻¹⁷ x 248 = 3,125 .10⁻¹⁵ g/L

the rate of solubility

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influencing factors are both solubility and the rate of dissolution

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The solubility of a substance

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