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posted by Lucinda Thursday, May 27, 2010 at 4:06am.

What is the pH of a 2.62 x 10 -1 M HCN solution ? NB the pKa for HCN = 9.212. 4.90 9.21 0.58 11.32 13.42

-log(2.62x10^-1) = 0.58

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