The equilibrium concentration of aluminum ion in a saturated aluminum phosphate solution is
M.
You need to look up the Ksp for AlPO4.
......................AlPO4 ==> Al^3+ + PO4^3-
I.......................solid.....................0..............0
C.......................-x........................x..............x
E.......................solid.....................x..............x
Ksp = (Al^3+)(PO4^3-)
Substitute the E line into the Ksp expression and solve for x which will give you the (AlPO4) in mols/L for a saturated solution. (Al^3+) will be 3 times that. Post your work if you get stuck.
To determine the equilibrium concentration of aluminum ion in a saturated aluminum phosphate solution, we need to consider the solubility product constant (Ksp) of aluminum phosphate (AlPO4).
The solubility product constant, Ksp, describes the equilibrium between a sparingly soluble salt and its dissociated ions in a solution. It is expressed as the product of the concentrations of the dissociated ions raised to the power of their stoichiometric coefficients in the balanced chemical equation.
The balanced chemical equation for the dissociation of aluminum phosphate (AlPO4) in water is:
AlPO4(s) ⇌ Al3+(aq) + PO43-(aq)
The solubility product expression for aluminum phosphate can be written as:
Ksp = [Al3+][PO43-]
Given that the solution is saturated, we can assume that the concentration of AlPO4(s) is constant. Therefore, the equilibrium constant expression simplifies to:
Ksp = [Al3+][PO43-]
Let's assume the equilibrium concentration of aluminum ion, [Al3+], as x (in moles per liter). Since the stoichiometric coefficient for aluminum ion is 1 in the balanced chemical equation, the concentration of aluminum ion is given by:
[Al3+] = x mol/L
The concentration of phosphate ion, [PO43-], can be calculated based on the solubility product constant and the known concentration of aluminum ion. Rearranging the solubility product expression, we have:
[PO43-] = Ksp / [Al3+]
Substituting the given values, we can calculate the equilibrium concentration of aluminum ion as follows:
x = Ksp / [Al3+]
Therefore, without knowing the actual value of the solubility product constant (Ksp) or any other relevant information, we cannot determine the exact equilibrium concentration of aluminum ion in the saturated aluminum phosphate solution.