How do you experimentally determine whether a soluble substance is a strong electrolyte weak electrolyte or non electrolyte?Characterize strong electrolytes versus nonelectrolytes. Give examples of...

How do you experimentally determine whether a soluble substance is a strong electrolyte weak electrolyte or non electrolyte?

Characterize strong electrolytes versus nonelectrolytes. Give examples of each. Aqueous solutions, strong and weak electrolytes.

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ncchemist | eNotes Employee

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Electrolytes are substances that ionize in water.  A strong electrolyte will completely ionize in water to its constituent ions.  Examples are sodium chloride (NaCl: table salt), potassium fluoride (KF), and hydrochloric acid (HCl: a strong mineral acid).  A weak electrolyte is a substance that only partially ionizes in water.  An example would be acetic acid, which is a weak organic acid.  A non-electrolyte would be a substance that does not ionize in water.  An example would be Fe(OH)3, which is the chemical formula for rust.  Rust has no dissolving power in water.  You can determine the strength of an electrolyte in water by measuring the water's ability to conduct electricity.  Ions are necessary for water to effectively conduct electricity.  So measuring the ability of the solution with the electrolyte to conduct electricity with a multimeter would tell you how effective an electrolyte it is.

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