Electrolytes - Strong, Weak, or Non-Electrolyte? For the...

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Strong, Weak, or Non-Electrolyte? For the purposes of this course, use these criteria to determine if a substance is a strong, weak, or non-electrolyte when dissolved in water (aqueous solution): 1. All ionic compounds are strong electrolytes, because they mostly break up into ions as they dissolve in water. Even insoluble ionic compounds (e.g., AgCl, PbSO 4 , CaCO 3 ) are strong electrolytes, because the small amounts that do dissolve in water do so principally as ions; i.e., there is virtually no undissociated form of the compound in solution. 2. Molecular compounds may be non-electrolytes, weak electrolytes, or strong electrolytes, depending on whether they dissolve without ion formation, a little ion formation, or mostly ion formation, respectively. Examples: Molecular Compound
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This note was uploaded on 03/01/2012 for the course CHEM 116 taught by Professor Robertcarter during the Spring '07 term at University of Massachusetts Boston.

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