CHEM 101A Chapter 8: chem wk 11 chpt 8
19 Nov 2016
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Solute that dissolves in water to form ions. A substance that conducts an electric current in water is an electrolyte. Any substance that does not conduct an electric current in water is called a nonelectrolyte. Strength of electrolytes depends in the extent that the compound forms ions. Strong electrolytes dissociates completely to form ions when dissolved in water. Nacl is strong electrolyte because all ions in the species are na+ and cl- Weak electrolytes dissolves in water to yield largely uncharged molecules, but a small fraction of the molecule forms ions. Equivalent relates to the amount of an ion to its charge. Eq used to express the amount of each ion in a solution. The number of moles of charge that a mole of ions contributes to a solution. One mole of a +1 charge = one equivalent of a +1 charge. One mole of a +2 charge = 2 equivalents of a +2 charge.
