equil - Z.1 Electrolytes To conduct electricity must need...

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Z.1 Electrolytes To conduct electricity must need mobile ions (anything in an ion form absorbed in H 2 O is an electrolyte) Concentration (of an ion) dependent on conductivity; need ion present to conduct electricity H2O Salts - NaCl (s) Na+ (aq) + Cl (aq) a solid Ionic Compound, is made up of positively and negatively charged ions that are held in fixed positions. These ions become free to move when they are dissolved in water. It is the movement of ions that makes up an electrical current in a solution. Ex: HX H+ (aq) + X (aq) Weak acid does not ionize completely; weak electrolyte Strong acid ionizes completely; strong electrolyte, HCl H+ (aq) + Cl (aq) % 100% HC 2 H 3 O 2 H + + C 2 H 3 O 2 (weak) 98% 2% Z.1 Electrolytes Strong electrolyte: a substance that when dissolved, yields a solution that is a good conductor of electricity because of nearly complete ionization or dissociation Nonelectrolyte: a substance that when dissolved yields a solution that is a nonconductor
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This note was uploaded on 09/02/2011 for the course CHEM 2 taught by Professor Harrison during the Spring '11 term at West Valley.

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equil - Z.1 Electrolytes To conduct electricity must need...

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