Question

find out the mass of 12.044×10^23 atoms of magnesium (atomic mass of Mg=24u)​

Answer 1

Explanation:

For Helium,

Number of atoms=Number of moles ×6.022×10

23

No of Moles =

6.022×10

23

12.044×10

23

= 2.

Now, atomic mass of He=4

Weight = 2×4 = 8 g