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May 22, 2015

Homework Help: Chemistry

Posted by Soojung on Tuesday, July 28, 2009 at 12:32am.

Calculate pH of a solution by mixing 15.0 mL of .50 M NaOH and 30.0 mL of .50 benzoic acid solution (benzoic acid is monoprotic, its dissociation constant is 6.5 x 10^ -5).

I am not sure whether I am supposed to do it by acid-base titration way or to use the formula -log (Ka)+ log [acid/base]

Because both give me totally different answers. So i wasn't sure which way I am supposed to do this.

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