How many moles are in 1.58*10^24 atoms of zinc?

2.6 moles are present in the given number of atoms of zinc.

Explanation:

It is known that 1 mole of any element contains Avagadro's number of atoms. So

Then,

moles

As here it is given that there is 1.58 * atoms of Zinc, then the number of moles in these number of atoms will be

moles

Hence, there are 2.6 moles in 1.58 * 10^24 atoms of zinc

vapour or gas assuming atmospheriv pressure