The aluminium in a package containing 75 ft2 of kitchen foil has a mass of 12 ozAluminium has a density of 2.70 g/cm3What is the thickness of the aluminium foil in millimetre?Given: 1 oz 28.4 g1 ft 12 inches1 inch 2.54 cm
Convert the foils dimensions to GCS units: 75 ft^2 (30.48 cm/ft)^2 5,225,796 cm^2 12 oz 28.35g/oz 340.2g volume thickness 5,225,796 cm^2 density mass / volume 340.2g / volume 2.70 g / cm^3 Plug in the volume expression, solve for thickness, and do the remaining math.
