You have been given a 12.0 inch X 12.0 inch square of aluminum foil that cost $2.89 for the roll of aluminum foilThe total area of the aluminum foil is 6.96 square metersCalculate the cost per atom of aluminumYou need to use Avogadro's number.
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There are two pieces of information missing from this question if you are to calculate the mass of the sheet ,the number of moles of atoms and thus its cost per atomTo do this you must know the THICKNESS of the foil and the density of Aluminium (2.7 g/cm3) Then calculate the number of m2 in a 12 inch square N Calculate the cost of your 12 in sq N/6.96 x $2.89 Then calculate the volume of the square using Vol l x b x thickness Calculate the mass of the sheet using Mass density x volume Calculate the number of moles mass / molar mass Al Calculate number of atoms moles x Avogadros number (6.022 x 10^23) Then cost / atom cost of sheet / Number of atoms.
