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posted by Katie on Sunday, March 7, 2010 at 6:07pm.

Determine the [H3O+] of a 0.160M solution of benzoic acid.

Benzoic acid = HBz HBz ==> H^+ + Bz^- Ka = (H^+)(Bz^-)/(HBz) Set up an ICE chart, substitute into the Ka expression, and solve for (H^+), then convert to pH. You will need to look up the Ka for benzoic acid.

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