Answer:
0.0498 moles
Explanation:
We are given;
- Number of atoms of Magnesium 3.0 × 10^22 atoms
We are required to calculate the number of moles of Magnesium;
- We need to know that 1 mole of an element contains 6.022 × 10^23 atoms.
- Thus; 1 mole of Mg = 6.022 × 10^23 atoms
- Therefore, to get the number of moles of Mg we divide the number of atoms given by the number of atoms in 1 mole.
Moles = 3.0 × 10^22 atoms ÷ 6.022 × 10^23 atoms/mol
= 0.0498 moles
Hence, the number of moles in 3.0 × 10^22 atoms is 0.0498 moles
