math/chem
posted by john .
If aluminum foil has a density of 2.70 g/ml, then how thick would be a 2.22 g sample of foilif it measures 5.0 cm on each side.
PLEASE SHOW WORK THX!

math/chem 
Steve
if the thickness is x cm, then since density = mass/volume, and 1ml = 1cm^3,
2.70 g/cm^3 = (2.22 g) / (25x cm^3)
Now just solve for x.
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