Answer:
1.505x10^24 atoms
Explanation:
From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02x10^23 atoms.
From the above hypothesis, it became clear that 1 mole of Zn also contains 6.02x10^23 atoms.
Now, if 1 mole of Zn contains 6.02x10^23 atoms,
then 2.5 moles of Zn will contain = 2.5 x 6.02x10^23 = 1.505x10^24 atoms
Therefore, 2.5 moles of Zn contains 1.505x10^24 atoms
