Pb3(ASO4)2.the solubility product expression

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Ksp=[Pb]³[AsO4

The solubility product expression is a mathematical expression that represents the equilibrium between a solid substance and its dissolved ions in a saturated solution.

To determine the solubility product expression for the compound Pb3(ASO4)2, we first need to understand its chemical formula.

In this compound, Pb represents the element lead, and ASO4 is a polyatomic ion called arsenate. The subscript 3 indicates that there are three lead ions (Pb3) and the subscript 2 indicates that there are two arsenate ions (ASO4) in the formula.

The solubility product expression for Pb3(ASO4)2 can be written as:

Ksp = [Pb2+]^3 * [ASO4^2-]^2

In this expression, [Pb2+] denotes the concentration of lead ions (Pb2+) in the saturated solution, and [ASO4^2-] denotes the concentration of arsenate ions (ASO4^2-) in the saturated solution.

Note that the solubility product expression is based on the stoichiometry of the compound. The powers in the expression come from the coefficients in the balanced chemical equation for the dissolution of the compound. In this case, the balanced equation would be:

Pb3(ASO4)2(s) ⇌ 3Pb2+(aq) + 2ASO4^2-(aq)

So, the solubility product expression represents the concentrations of lead ions and arsenate ions at equilibrium in a saturated solution of Pb3(ASO4)2.