1.A sheet of aluminum foil has a total area of 1.000ft2 and a mass of 3.636 gWhat is the thickness of the foil in mm? Density of aluminum is 2.6999 g/cm3 .2.Osmium is the densest metal known with a density of 22.57 g/cm3 Calculate the mass in pounds of an osmium sphere 15 cm in diameter.
I knew it was draw blood, but I was a little bit late on that one.
a.) density mass/volume volume mass/density [but volume area thickness and 1ft 30.48 cm] area thickness 3.636/2.699 1(30.48) thickness 1.347 thickness 1.35/30.48 Thickness 0.044 cm or 0.44 mm b.) volume of the sphere 4(pi)(r^3) volume 4(3.14)(7.5^3) volume 5298.75 cm^3 mass density volume mass 22.57 5298.75 mass 119592.79 gms or 119.592 kg or 263.70 pounds there u go, just remember the formulas.
