Apackage of aluminum foil contains 50. ft2 of foil, which weighs approximately 6.0 oz. aluminum has a density of 2.70 g/cm3. what is the approximate thickness of the foil in millimeters? express your answer to two significant figures and include the appropriate units.

1.36 x 10^-3 cm

Explanation:

Area = 50 ft^2 = 46451.5 cm^2

mass = 6 oz = 170.097 g

density = 2.70 g/cm^3

Let t be the thickness of foil in cm.

mass = volume x density

mass = area x thickness x density

170.097 = 46451.5 x t x 2.70

t = 1.36 x 10^-3 cm

Thus, the thickness of aluminium foil is 1.36 x 10^-3 cm.

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