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March 31, 2015

Homework Help: Chemistry (A level)

Posted by Benjy on Saturday, December 6, 2008 at 9:49am.

I was given a Chemistry question on the titration of a strong base being added to a weak acid. The question was:
"Calculate the pH in a titration when 10.0cm^3 of a 0.10moldm^-3 solution of NaOH is added to a 10.0cm^3 of 0.25moldm^-3 solution of ethanioc acid? (Ka = 1.76 x 10^-5)

I'm completely lost on how to do this. I can work it out for strong acid + strong base (vise versa) but i'm not very good working with Ka. Please can you explain everything in full as i'm not amazing at working out what to put where and in which equation.
Thanks!

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