The solubility product constant (Ksp) describes the equilibrium between a solid and its constituent ions in a solution. The value of the constant identifies the degree to which the compound can dissociate in water. The higher the Ksp, the more soluble the compound is.
What do Ksp values indicate?
The solubility product constant, Ksp, is the equilibrium constant for a solid substance dissolving in an aqueous solution. It represents the level at which a solute dissolves in solution. The more soluble a substance is, the higher the Ksp value it has.
When Ksp is equal to ionic product?
If solubility product is greater than the ionic product then, the solution is unsaturated and no precipitate will form by the addition of more solute. When Ksp< ionic product: If solubility product is less than the ionic product then the solution is super saturated and the excess of solute will precipitate immediately.
What is the Ksp expression?
In general, MaXb(s) <=> aM+b(aq) + bX–a(aq) is expressed as Ksp = [M+b]a[X−a]b. These expressions are called solubility product constant expressions because they involve the product of the equilibrium concentrations of the constituent ions, each raised to the power corresponding to the number of ions in the formula.
What changes the Ksp value?
K s p represents how much of the solute will dissolve in solution. The value of K s p varies depending on the solute. The more soluble a substance is, the higher its K s p chemistry value.
What is a high KSP value?
Ksp (Solubility product constant) is the equilibrium between a solid and its respective ions in a solution. The value of the constant identifies the degree of which the compound can dissociate in water. For example the higher the Ksp the more soluble the compound is.
What 4 factors affect solubility?
Factors affecting solubility
- Temperature. Basically, solubility increases with temperature. …
- Polarity. In most cases solutes dissolve in solvents that have a similar polarity. …
- Pressure. Solid and liquid solutes. …
- Molecular size. …
- Stirring increases the speed of dissolving.
What is KW ionic product of water?
Water is a weak electrolyte and undergoes selfionistion to a small extent. “The product of concentrations of H+ and OH- ions in water at a particular temperature is known as ionic product of water.” It is designated as Kw. ions increases with increase in temperature.
What is S in solubility?
For example, sugar is a solute and water is a solvent. Solubility is defined as the maximum amount of solute that can be dissolved in a solvent at equilibrium. … Ksq is used to describe the saturated solution of ionic compounds.
How do you calculate ionic product?
When an addition of a acid or the base happens in the pure water, then the concentration of the ionic product concentration of the pure water can be calculated by using ionic product constant equation ([H+][OH–] = Kw), where the value of KW is constant at specific temperature but the concentration of the H+ and OH– …
How do you do KSP expressions?
Ksp=[M+][X−][MX(s)] , but MX(s) as A SOLID cannot express a concentration, and thus the expression simplifies to… Usually standard conditions are specified, because a hot solution can generally hold more solute than a cold one. have been measured for a host of insoluble, and semi-soluble ionic salts.
Why does NaCl not have a KSP value?
Solution : Ksp values are given for those compounds which are partially soluble or insoluble in water . But , we know NaCl is strong electrolyte and it completely dissociated in water . … Therefore , the Ksp of NaCl is not present .