Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
Qsp stands for Quotient Solubility Product. It represents the ratio of concentrations of ions at any point in time during a reaction involving soluble substances.
Related terms
Solubility Product Constant (Ksp): This is similar to Qsp but specifically refers to equilibrium conditions โ when no more solute will dissolve into solution. Itโs like checking your bank balance right after payday โ before any bills are paid or purchases made.
This is the ratio of concentrations when the forward and reverse reactions occur at the same rate. Itโs like balancing your checkbook โ income equals expenses, so thereโs no net change.