How to use the solubility from ksp for any salt calculator
Find the molar and mass solubility of a salt from its solubility product and ion ratio. Enter solubility product, cation count in formula, anion count in formula, molar mass in the fields above; the molar solubility, solubility in grams per litre are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “solubility from Ksp”, “molar solubility of Ag2CrO4”, “Ksp to solubility general”, “calculate solubility from ksp for any salt”, “find molar solubility”.
Formula
Variables
- Ksp — Solubility product
- a — Cation count in formula
- b — Anion count in formula
- Mw — Molar mass (g/mol)
Worked example
With solubility product = 1.1e-12, cation count in formula = 2, anion count in formula = 1, molar mass = 331.73 g/mol, the calculator gives molar solubility ≈ 6.503 × 10⁻⁵ mol/L; solubility in grams per litre ≈ 0.02157226 g/L.
Frequently asked questions
What is the solubility from ksp for any salt calculator used for?
Find the molar and mass solubility of a salt from its solubility product and ion ratio. It helps with questions such as “solubility from Ksp”, “molar solubility of Ag2CrO4”, “Ksp to solubility general”.
What is the formula for the solubility from ksp for any salt calculation?
Molar solubility (mol/L) = (Ksp / (a^a × b^b))^(1 / (a+b)). Solubility in grams per litre (g/L) = [Molar solubility] × Mw. Here Ksp is solubility product, a is cation count in formula, b is anion count in formula, Mw is molar mass (g/mol).
What inputs do I need for the solubility from ksp for any salt calculator?
You need solubility product, cation count in formula, anion count in formula, 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 the solubility from ksp for any salt 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 solubility from ksp for any salt 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.