Ni is about 68.7 grams per mol.
so
138/68.7 = 2.008 mol of Ni
that is
2.008 mol * 6.02*10^23 atoms/mol
= 12.1 *10^23 atoms
(quite a few )
Find the number of atoms in 138 grams of nickel.
I'm not sure where to start. Can anyone help me?
1 answer
1 answer