Question

calculate the number of the following 12.044 into 10 to the power 23 atoms of sodium​

Answer 1

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

Explanation: