A package of aluminum foil contains 50 ft^2 of foil, which weighs approximately 6.0oz Aluminum has a density of 2.70 g/cm^3What is the approximate thickness of the foil in millimeters?
Why would you think it is poisenous to put a metal cup in the freezer?
mass Al 6 oz x 454 g/16 oz 170g area Al 50 ft^2 x 144 in^2/1 ft^2 x 6.54 cn^2/1 in^2 4.64x10E4 cm^2 thickness 1 cm^3/2.70 g / 4.64x10E4 cm^2/ 170 g 1.4x10E-4 cm
