Posted by bobby on Wednesday, March 25, 2009 at 8:56pm.
You should read the questions you post. Note that this post has no number other than 0 so I suppose 0 moles NaCl will have 0 Na^+.
To work any problem of this type, just remember that there are 6.02 x 10^23 molecules NaCl in a mole of NaCl and that there is one Na^+ per NaCl molecule.
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