Posted by **john** on Friday, September 27, 2013 at 10:40pm.

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**, Saturday, September 28, 2013 at 12:17am
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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