How many moles would contain 1.50 x 1024 atoms of sodium?

2.5 moles

Explanation:

We are given;

1.5 * 10^24 atoms

We are required to determine the number of moles of sodium.

We know that, 1 mole of an element contains a number of atoms equivalent to the Avogadro's number, 6.022 * 10^23. That is, 1 mole of an element = 6.022 * 10^23 atoms.

Therefore;

1 mole of sodium contains 6.022 * 10^23 atoms

To get the number of moles;

= Number of atoms : Avogadro's number

= 1.5 * 10^24 atoms : 6.022 * 10^23 atoms/mol

= 2.49 moles

= 2.5 moles

Therefore, 2.5 moles of sodium contains 1.50 * 10^24 sodium atoms