Find the number of aluminum atoms in your piece of aluminumAssume your aluminum sample is the most common isotopeShow all your calculations below and make it clear what you are calculating.Stuff I know:Density of aluminum is 2.6989g/cm^3Mass: 0.24gVolume: 1mLAtomic mass: 26.9815g (you could round it to 27)Number of protons and electrons is 13Mass of 1 proton (the neutron also has the same mass) 1.672 x 10^-27kgSo there are 1000g in 1 kg, so I multiplied 1.672 x 10^-27kg and got 1672 x 10-24Now what do I do? Also, I looked this up and people talk about multiplying it by something called a quot;molequot; and Avogadro's numberShe doesn't expect us to know thatSo how do I do this?This is grade 9 scienceThanks!
of atoms in one mole of aluminum is 6.022 X10^23 so we have 26.9815g/1 mole of atoms or 26.9815g/6.022 X10^23 3.14 ^-17 grams is one atom of aluminum so 0.24grams/3.14^-17 grams7.64^15 atoms of aluminum in .24 grams
