Tuesday, 20 January 2015

6.1 Properties of Electrolytes and Non-electrolytes

Electrolytes and Non-electrolytes
■ Electrolyte

A compound that only conducts electricity when molten dissolved in water.

Contain ions which move freely to carry electrical charges.

Undergoes decomposition to the elements when an electric current flows through.

Examples :
Oxides and hydroxides of metals in the molten state or aqueous solution (if insoluble).
Aqueous solutions of mineral acids.
■ Non-electrolyte

A compound that does not conduct electricity, whether in solid, molten or aqueous solution.

No ions which can carry electrical charges.

No change when an electric current flows through.

Examples : All covalent compounds such naphthalene, sugar, benzene and others.
■ This video provides a brief introduction to electrochemistry.

Laboratory Activity 6.1.1: Electrolytes and non-electrolyte

⇲ For exercise(objective and subjective), download for free on Android OS.

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