How to use the solubility product calculator
Find molar solubility of a 1:1 salt from Ksp. Enter ksp, molar mass in the fields above; the molar solubility, solubility are computed instantly and plotted on the chart so you can see how the answer changes.
Formula
Variables
- Ksp — Ksp
- M — Molar mass (g/mol)
Worked example
With ksp = 1.8e-10, molar mass = 143.32 g/mol, the calculator gives molar solubility ≈ 1.3416 × 10⁻⁵ mol/L; solubility ≈ 0.00192284 g/L.
Frequently asked questions
What is the formula for the solubility product calculation?
Molar solubility (mol/L) = √(Ksp). Solubility (g/L) = [Molar solubility] × M. Here Ksp is ksp, M is molar mass (g/mol).
What inputs do I need for the solubility product (ksp) calculator?
You need ksp, molar mass in g/mol. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use this calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.