A roll of aluminum is 304 mm wide, 22.8 m long and 0.5 mil (12.7 μm) thick, calculate the number of atoms of aluminum in the roll.?
If its in bad area then no all you have to do is push the screen an it comes out.
NO,, May as well put a welcome sign outsideA screen door is the same as a door left open.
your question A roll of aluminum is 304 mm wide, 22.8 m long and 0.5 mil (12.7 μm) thick, calculate the number of atoms of aluminum in the roll.? Hints(1) use dimensional analysisit will make your chemistry life EASY(2) think about densitymass / volume(3) think about how we calculate volume (4) and finally, if you know mass, how do you convert to atoms? here's the complete solution (304mm x 22.8m x 12.7μm) x (1cm/mm) x (100cm/m) x (10^6μm / 100cm) x (2.70g / cm?) x (1 mol / 26.98g) x (6.022x10^23 atoms / mol) _ atoms just enter 304 x 22.8 x 12.7 x 100 x 1e6 / 100 x 2.7 / 26.98 x 6.022e23 in your calculator and round to say3 sig figs and if you need help with that conversioncheck out the units and how they cancel mm x m x μm.1cmcm.cmg.mol.atoms .- - - - x - x - x - x - x - x - - atoms .1.mm.m.μm .cm?.g.mol can you see the mm /mm m / m μm / μm (cm x cm x cm) / cm? g / g mol / mol all cancel out leaving atoms?
