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Express Ksp in terms of molar solubility, x, for a salt with a formula of
A. AB(s)
B. AB2(s)
C. AB3(s)
D. A3B2(s)
Revenlant knowledge
Solubility Constant: The solubility of a substance in a solvent is the highest amount of moles of the solute that can dissolve in a liter solution at a particular temperatures and at a given pressure. The solubility is based on the constant of solubility Ksp value of the solvent for the specific solvent.
Solubility: The maximum amount of solute that can be dissolved in a solvent is called the “solubility” and it refers to the ability of the solvent to create a saturated solution at a specific temperature.
Molar solubility: The molar solubility refers to the moles of a solute that dissolve in a litre solution. It can be expressed in mol/L (molarity) or M (molarity).
Solubility product: This is the equilibrium constant that determines the solubility in water of an ionic substance. Ksp denotes the solubility product.
The solubility product for a saturated solution is the result of activities of the ions, each of which has been raised to its respective coefficients (powers).
Take a look at the following general reactions:
This is how the solubility product should be expressed:
Solubility product = Ksp
The molar solubility for M ion is [M]
The molar solubility for X ion is [X]
The ions were raised to the power is n and m
ANSWER:
Let the solubility A and B be x
This equation can be read as:
Concentrations of A and B be x
This equation can be read as:
Concentrations of A and B be x
This equation can be read as:
Concentrations of A and B be x
This equation can be read as:
⇒ Ksp in terms of molar solubility, x, for the salts are as follows:
AB(s) Ksp = x2
AB2(s) Ksp = 4x3
AB3(s) Ksp = 27x4
A3B2(s) Ksp = 108x5