by Jens » Sat Dec 31, 2005 5:07 am
Using a periodical table, look up;
Na wich has an atomic weight of 22.98977 gr/mol (grams per mole)
Cl wich has an atomic weight of 35.453 gr/mol (grams per mole)
so a mole of NaCl would weigh 58.44277 grams. The rest should be easy
Hope this helps
Jens