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Chemistry · Ch 3 — Ionic Equilibria

Introduction

3.1

Introduction

The equilibrium between ions and unionized molecules in solution is called ionic equilibrium. The principles of chemical equilibrium we studied in Standard XI will be applied to ionic equilibria. In this chapter, with the help of these principles, we determine equilibrium constants and concentrations of ions and unionized species. In particular we examine the following ionic equilibria :

  • H+\mathrm{H^{+}} and OH−\mathrm{OH^{-}} ions and unionized water molecules.
  • Ionization of weak acids and weak bases.
  • Reactions between ions of salt and ions of water.
  • Solid salt and its ions in water.
Note

The Balbharati textbook prints ionic charges in its circled style -- H⊕^{\oplus}, OH⊖^{\ominus} -- throughout this chapter. We write the same charges in the standard superscript form (H+\mathrm{H^{+}}, OH−\mathrm{OH^{-}}); the meaning is identical.

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