Solubility Product (Ksp) Calculator
Calculate the solubility product constant (Ksp) of a chemical salt from its molar solubility.
Calculation Parameters
Adjust the values below.
Calculated Result
Solubility Product (Ksp)
Expert Tip
Ensure units are correctly formatted (e.g. Kelvin for gas temperatures and liters for volumes) to get chemically accurate outputs.
How this Calculator Works
This calculator allows you to solve Solubility Product (Ksp) problems dynamically. Adjust the input parameters using the sliders or selection menu below:
- Solubility - Coefficient (Range: 1.0 to 9.9, Default: 1.3)
- Solubility - Exponent (10^x) (Range: -10 to 0, Default: -5)
- Salt Stoichiometry (Dropdown selection, Default: AB (e.g. AgCl, Ksp = S²))
The results are computed instantly and updated in the results panel on the right.
Formula & Methodology
For AB2: Ksp = 4S³
For AB3: Ksp = 27S⁴
For A2B3: Ksp = 108S⁵
Where:
- Solubility - Coefficient: Parameter value.
- Solubility - Exponent: Parameter value.
- Salt Stoichiometry: Parameter value.
Step-by-Step Calculation Example
To calculate Solubility Product (Ksp) manually, follow these steps:
- Identify the input parameters. For example:
- Solubility - Coefficient = 1.3
- Solubility - Exponent (10^x) = -5
- Salt Stoichiometry = AB (e.g. AgCl, Ksp = S²)
- Apply the formula:
For AB: Ksp = S²
For AB2: Ksp = 4S³
For AB3: Ksp = 27S⁴
For A2B3: Ksp = 108S⁵ - Verify the calculated value which is updated instantly in the results panel on the right.
Frequently Asked Questions
What is solubility product constant (Ksp)? ▼
Ksp is the equilibrium constant for a solid substance dissolving in an aqueous solution.
How do you calculate Ksp for a 1:1 salt like AgCl? ▼
For AgCl -> Ag+ + Cl-, Ksp = s × s = s², where s is molar solubility.
How does common ion effect influence solubility? ▼
Adding a common ion shifts equilibrium left according to Le Chatelier's principle, significantly reducing salt molar solubility.