Che 103 chapter3

Strong these dissociate completely or nearly so into

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Unformatted text preview: CTROLYTES Examples of Strong Electrolytes: HCl (aq), CuCl2(aq) and NaCl (aq) are strong electrolytes. strong These dissociate completely (or nearly so) into ions. Strong Electrolytes conduct electricity well. Strong Electrolytes HCl(aq), CuCl2(aq) and NaCl(aq) are strong electrolytes. These dissociate completely (or nearly so) into ions. Weak Electrolytes Acetic acid ionizes only to a small extent, it is a weak electrolyte. weak CH3CO2H(aq) € − CH3CO2 (aq) + H+ (aq) Weak electrolytes exist in solution under equilibrium conditions. equilibrium The small concentration of ions conducts electricity poorly. Weak electrolytes exit primarily in their molecular form in water. Weak Electrolytes Weak electrolytic solutions are characterized by equilibrium conditions in solution: equilibrium When acetic acid dissociates, it only partially ionizes. HCH3O2 (aq) € 2 − 2 + H (aq) + CH3O (aq) 2 95% 5% The majority species in solution is acetic acid in its molecular form. When writing a weak electrolyte in solution, one NEVER breaks it up into the corresponding ions! NEVER HC2H3O2 (aq) € + − 2 H (aq) + C2H...
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This note was uploaded on 04/09/2014 for the course CHE 103 taught by Professor Moran during the Spring '07 term at West Chester.

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