Unformatted text preview: CTROLYTES
Examples of Strong Electrolytes:
HCl (aq), CuCl2(aq) and NaCl
(aq) are strong electrolytes.
These dissociate completely (or
nearly so) into ions.
Strong Electrolytes conduct
electricity well. Strong Electrolytes
HCl(aq), CuCl2(aq) and NaCl(aq) are strong
These dissociate completely (or nearly so) into
ions. Weak Electrolytes
Acetic acid ionizes only to a small
extent, it is a weak electrolyte.
CH3CO2 (aq) + H+ (aq) Weak electrolytes exist in solution
under equilibrium conditions.
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:
When acetic acid dissociates, it only partially
ionizes. HCH3O2 (aq)
2 + H (aq) + CH3O (aq)
2 95% 5% The majority species in solution is acetic acid in its
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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