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Electrolytes

Electrolytes. Solutes whose solutions does not conduct electricity are nonelectrolytes . These solution are composed of molecules or are pure water. Ionic salts dissolved in water are strong electrolytes . Some solutes are poor conductors and are known as weak electrolytes .

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Electrolytes

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  1. Electrolytes • Solutes whose solutions does not conduct electricity are nonelectrolytes. These solution are composed of molecules or are pure water. • Ionic salts dissolved in water are strong electrolytes. • Some solutes are poor conductors and are known as weak electrolytes.

  2. Fig. 9-2, p. 233

  3. Electrolytes • The ability of a solution to conduct electricity is regarded as positive evidence that the solution contains ions. • Solutions composed of molecules do not conduct electricity because there are no ions present.

  4. KCl(s)H2O K+(aq) + Cl-(aq) Fig. 9-3, p. 234

  5. Fig. 9-4, p. 235

  6. Fig. 9-6, p. 238

  7. CuCl2(s)H2O Cu+2(aq) + 2 Cl–(aq) Fig. 9-5, p. 235

  8. Ions • Ion: atom or group of atoms with a charge. • Anion: negative ion. • Cation: positive ion.

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