Question

How many moles are 2.96 x 1020 atoms of iron?

Answer 1

Step-by-step explanation:

Iron is a ductile, malleable, silver-white metallic element, scarcely known in a pure condition, but much used in its crude or impure carbon-containing forms for making tools, implements, machinery, etc. Symbol: Fe; atomic weight: 55.847; atomic number: 26; specific gravity 7.86 at 20°C.

1 mol contains
`=6.02*10^(23)` particles, whether it be atoms, ions, molecules or whatever (Avogadro's number).

So you just divide:

`(2.96*10^(20))/(6.02*10^(23))` = = 4.9169435215947 × 10^-4

Answer 2

Answer: There are 3019.2 atoms of iron.