Question

Calculate the number of moles for 12.044x10²³ number of He atoms .​

Answer 1

Answer:

2 moles

Explanation:

1 mole = 6.044 *10²³

Answer 2

Answer:

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