The aluminum in a package containing 75 ft2 of kitchen foil weighs approximately 12 ozAluminum has a density of 2.70 g/cm3What is the approximate thickness of the aluminum foil in millimeters? (1 oz 28.4 g.)
First thing to do is get a second opinionAs always.
Although these metals are toxic, they aren't toxic in human body not every thing is measured by that, Simply, For Example the hydrogen is flammable and oxygen causes flame, in labif they joined each other they make a huge explosion,but when we look at the chemical structure of water, we find that it consist of hydrogen and oxygen !!!! So, things aren't measured by the apparent.
The aluminum is 75 square feet or 75 times 144 square inches per square foot 10,800 square inches 10,800 square inches times 6.4516 square cm per square inch 69,677 square cm The aluminum weighs 12 oz (28.4 grams per ounce) 340.8 gramsDivide the weigh of the aluminum by the density 340.8 grams/2.70 grams per cm^3 gives the volume of the aluminum 126 cm^3 Divide the volume by the area gives the aluminum thickness 126/70.000 1.8 x 10^-3 cm .0018 cm .018mm
