basic

Solubility in Common-Ion Solution from Ksp Calculator

Effect of common ion on molar solubility.

For a salt AB dissolving in a solution already containing [B] = c₀, calculates the new molar solubility s where Ksp = s(s + c₀). Demonstrates the common-ion effect.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

mol/L

Results

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  1. Fill in the inputs above using the units you already have.
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  3. Hover any result row for the underlying formula and intermediate values.

Formula

Ksp = s · (s + c₀); solve quadratic for s.

In depth

For a salt AB dissolving in a solution already containing [B] = c₀, calculates the new molar solubility s where Ksp = s(s + c₀). Demonstrates the common-ion effect.