Question

57.7 g Ni contains how many atoms?

Answer 1

`"Number of atom"` `=` `"Mass"/"Molar mass"xx"Avogadro's Number."`

Explanation:

And thus, `(57.7*g)/(58.7*g*mol^-1)xx6.022xx10^23*mol^-1`

`~=6.022xx10^23` `"nickel atoms"`.