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posted by Anna Wednesday, February 27, 2013 at 7:07pm.

Calculate the pH of a .50 M solution of NaCl.

Don't think that you can do that. pH should be neutral=7.

But if you must calculate it I would do this. 2H2O ==> H3O^+ + OH^- (H3O^+))OH^-) = K\w = 1E-14 (x)(x) = 1E-14 x = sqrt(1E-14) = 1E-78 pH = 7

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