Solubility Product Common Ion Calculator
Solve ideal molar dissolution of AₚBq from Ksp and independently supplied starting common-ion concentrations.
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Result
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Calculation steps
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How to calculate
Solve the monotone nonnegative dissolution balance in logarithmic product form, retaining the stoichiometric ion multipliers.
(A0+p s)^p(B0+q s)^q=Ksp
Worked example
For p=q=1, zero common ions and Ksp=1.8×10⁻¹⁰, ideal molar solubility is √Ksp≈1.34164079×10⁻⁵ mol/L.
Assumptions and input details
Ideal concentration-form product for one solid, no complexes, pH coupling or activities. If the initial ion product meets/exceeds Ksp, additional dissolution is zero; supersaturated precipitation is flagged but not modeled. This is not a real material-selection or solubility certification.
Using this calculator
Can I enter my own problem?
Yes. Replace the example values with your own inputs. The result, calculation steps, tables and applicable diagrams update from those inputs. Blank or invalid values clear the result; example values are never silently substituted for missing inputs.
Are the results exact?
Results use floating-point arithmetic and displayed rounding. Read the formula, assumptions and any stated data precision before interpreting the result.
Is my input uploaded?
The calculation runs in your browser. No account, file upload or external AI service is required. Inputs are not saved between page reloads.
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