Class 12 Chemistry Electrochemistry Strong electrolytes

Strong electrolytes

  • A solute or substances that completely ionize or dissociates in a solution are known as strong electrolyte. These ions are good conductors of electricity in the solution.
  • For example, HCl, HBr, HI, HNO3, NaOH, KOH, etc.
  • For strong electrolytes, Λm  increases slowly with dilution and can berepresented by the equation:

  • It dissociates completely at moderate concentrations.
  • The conductance of the solution increases with dilution of solution.
  • There exist strong interionic forces of attraction at moderate concentrations.
  • The slope for Λm vs c1/2 is linear at low concentrations.

Fig. Molar conductivity ΛVs. c1/2 for acetic acid and potassium chloride

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