Question

How many moles are in 3.72 x 10^27 atoms of iron?

Answer 1

Answer: There are
`0.617 * 10^(4)` moles present in
`3.72 * 10^(27)` atoms of iron.

Step-by-step explanation:

According to the mole concept, there are
`6.022 * 10^(23)` atoms present in one mole of a substance.

Hence, moles present in
`3.72 * 10^(27)` atoms are calculated as follows.

`Moles = (3.72 * 10^(27))/(6.022 * 10^(23))\\= 0.617 * 10^(4) mol`

Thus, we can conclude that there are
`0.617 * 10^(4)` moles present in
`3.72 * 10^(27)` atoms of iron.