# What is the #K_(sp)# of cesium sulfate?

##### 1 Answer

As discussed below.

#### Explanation:

The solubility product constant

This constant is used to describe saturated solutions of ionic compounds of relatively low solubility. A saturated solution is in a state of dynamic equilibrium between the dissolved, dissociated, ionic compound and the undissolved solid.

Consider the general dissolution reaction below (in aqueous solutions):

And solubility equilibrium general expression

Where terms in the numerator represent concentrations of respective ions raised to power equal to the number of each ion in the solution and denominator is a value representing an amount of solid solute in moles in a litre. We see that the denominator is a constant, therefore, rewriting we get the following equation:

Writing LHS as solubility product constant

At equilibrium in given conditions an expression like (1) above for cesium sulfate can be written as

From tables solubility of Cesium sulfate in g/100g of water is

To calculate value of