Question

Determine the numbers of atoms in each of the following

5.40 g B
0.250 mol k
0.0384 mol k
0.02550 g pt
1.00 x 10^-10 g Au

Answer 1

multiple all the numbers on top then divide by the product of the bottom numbers. By using dimensional analysis, you can easily do the same for the other elements.

Answer 2

can you take a look at mine after you help him

Answer 3

Thanks fnuuosh

Answer 4

I replied to you already, toxic.
You're welcome, Robert.