87.1 Electrolyte and electrolytic solution 3) Dissociation theory for weak electrolytes In 1887, Svant A. Arrhenius postulated that, when dissolved in adequate solvent, some substances can split into smaller particles, the process was termed as dissociation AB A++ B molecule cation anion 匚 SvanteArrhenius positive ion negative ion 1903 Noble prize Sweden The charged chemical species are named as ions 1859/0219~1927/1002 for his great contribution to solution and the process is termed as ionization chemistry
In 1887, Svant A. Arrhenius postulated that, when dissolved in adequate solvent, some substances can split into smaller particles, the process was termed as dissociation. AB ⎯→ A+ + B – molecule cation anion positive ion negative ion The charged chemical species are named as ions and the process is termed as ionization. + − ⎯⎯→ + − 3) Dissociation theory for weak electrolytes §7.1 Electrolyte and electrolytic solution
87.1 Electrolyte and electrolytic solution New definitions. Weak/strong electrolyte? Ion, cation, anion; True/ potential electrolyte? Dissociation ionization Is sulfuric acid a strong or a weak Theory of Electrolytic Dissociation electrolyte Acid-base theory Is Nacl a strong electrolyte?
New definitions: Ion, cation, anion; Dissociation, ionization Theory of Electrolytic Dissociation Acid-base theory Cf. Levine p.295 Is sulfuric acid a strong or a weak electrolyte? Is NaCl a strong electrolyte? §7.1 Electrolyte and electrolytic solution Weak / strong electrolyte? True / potential electrolyte?