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December 21, 2014

Homework Help: Chemistry

Posted by Jessica on Wednesday, October 27, 2010 at 9:58pm.

How many atoms of mercury are present in 5.4 cubic cm of liquid mercury? The density of mercury is 13.55g/cc.

mass Hg = volume x density
Then convert to moles.
Then remember there are 6.022E23 atoms for every mole.

I still don't get how to do this! HELP ME!!!

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