guest Posted January 15, 2012 Report Share Posted January 15, 2012 Hi,I conducted a typical titration lab where I reacted HCl with NaOH.I now want to find the Ka value for HCl. The molarity of the HCl was .1 mol dm-3 and its initial pH was 2.80. Using log, I converted 2.80 to H+ concentration. I know [H+] = [Cl-], yet somehow, I am getting a really low value for ka, which shouldn't be.Any suggestions?Thanks Reply Link to post Share on other sites More sharing options...
ILM Posted January 15, 2012 Report Share Posted January 15, 2012 I don't think that there is a Ka for HCL (or it might be a very big number). HCL is a strong acid which completely dissociates in water. So HCl --------> H+ + Cl- so there is no reversible reaction. Reply Link to post Share on other sites More sharing options...
ILM Posted January 15, 2012 Report Share Posted January 15, 2012 Yes Ka and Kb are a values that is usually used to show us the extent to which a weak acid or base dissociate. 1 Reply Link to post Share on other sites More sharing options...
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