Common Ion Effect on Solubility

Interactive visualization of common ion effect on solubility for 4 salts (AgCl, PbCl₂, BaSO₄, CaF₂). Log-scale solubility vs common ion concentration graph with Le Chatelier's principle explanation. Shows dramatic solubility decrease with added common ion and percentage reduction calculation.

COMMON ION EFFECT

Decrease in solubility of an ionic compound when a common ion is added to the solution.

CORE FORMULAS

Solubility Product

AP EXAM CONNECTION

Unit: Unit 7: Equilibrium
Learning Objective: TRA-13.C

COMMON MISCONCEPTIONS

Thinking common ions increase solubility.

KEY TAKEAWAYS

Common ion effect is an application of Le Chatelier's Principle.

DEEP DIVE: RELATED CONCEPTS

KSP AND PRECIPITATION

Solubility product constant describes the equilibrium between a solid ionic compound and its dissolv...

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