The question is written exactly like this; Estimate the number of atoms/cm^2 in

Question

The question is written exactly like this;

Estimate the number of atoms/cm^2 in an aluminum foil that is 1mm thick.

I can look up the density of aluminum getting me 2.70g/cm^3 but im having problems setting this one up properly. I don't have a mass or volume to use D=M/V. Without being given the length and hieght Im not sure how to get volume.

Do I use the periodic table for Al giving me 26.98g/mol and then use avagadro's number to get to atoms? Im just lost at how to do this cause each path I try I can't get to the final answer.

Help pleae.

Explanation / Answer

hey man read question dear it gives all thing.... its given that find no of atoms per cm^2 i.e. area = 1cm^2...

here use volume = area * thicness ==>> Area = 1cm^2 and thicness = 1mm = 0.1 cm

so volume = 0.1 cm^3...

now i thin u solve It.....

pls read and if hve further doubts ythen comment below ur doubts....

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.