a sheet of aluminum foil has a total area of 1.000ft^2 and a mass of 3.380gwhat is the thickness of the foil in millimeters? (density of Al2.699 g/cm^3)answer needs to be in sig figs
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l x w x h volume, the unknown is h or thickness of Al foil[(12in) (2.54cm/in)] [(12in) (2.54cm/in)] h [(3.380g) (1cm^3/2.699g)]Solving for h, get h 1.3479x10^-3 cm, convert to mm: (1.3479x10^-3cm) (10mm/cm) 1.348x10^-2 (4 sig figs in question, therefore keep answer to 4 sig figs.)
