Posted by pip on Monday, November 17, 2008 at 9:12pm.
...........1 mole
0.26g He * ------- = 0.065 moles He
...........4.0026g
(you divide how many grams you have by the atomic mass [which is the # below the element symbol on the periodic table])
(Sorry about the spacing, the formatting gets messed up when you post a message)
Yes, spacing is a problem. We work around it by doing it this way.
# mols = g/molar mass.
# mols = 0.26/4.00 = ??
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