Homework Help: College Chemistry II

Posted by Ashley on Monday, March 8, 2010 at 7:06pm.

Determine the pH for .16M of NaC2H3O2.

Determine the pH for .18M of NaCl.

College Chemistry II - DrBob222, Monday, March 8, 2010 at 7:21pm
NaC2H3O2 is sodium acetate. Let's call the acetate ion Ac^-.
Ac^- + HOH ==> HAc + OH^-

Kb = (Kw/Ka) = (HAc)(OH^-)/(Ac^-)
Set up an ICE chart and solve for OH^-, convert to H^+, then to pH.

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