Homework Help: chemistry

Posted by Olamide on Saturday, March 26, 2011 at 8:48am.

0.1M solution of methanoic acid is found to have a ph of 2.4 at 25 degree celcius. Calculate the dissociation constant k at this temperature.

chemistry - DrBob222, Saturday, March 26, 2011 at 2:33pm
Methanoic acid, CH3COOH, I will call HAc.
HAc ==> H^+ + Ac^-
Set up an ICE chart and substitute into Ka. Ka = (H^+)(Ac^-)/(HAc)

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