How many molecules are in 1 square foot of aluminum foil?
Since aluminum foil is an amalgamation of various metals you would first need to know the full chemical breakdown in order to determine how many molecules there are in a square foot of aluminum foil. That said, if your foil was 100% aluminum, you could determine the number of AL atoms by first determining the mass of the foil and dividing by the molecular weight of AL. Multiply that by 6.022 x 10^23 to determine the number of atoms.
