Question

calculate the number of moles, molecules and total number of atoms in 10 gm of MgO. ​

Answer 1

Answer:

Explanation:

Molarmass of MgO = 40g/mol

No.of mol = 10/40 = 0.25

No.of molecules = 0.25×6.022 ×10^23

= 1.50×10^23

No of atoms= 1.5×10^23×2

= 3×10^23

Answer 2

Answer:

no.of moles is 1/4 gms, no.of mol's is 1/4NA mol's, no. of atoms is NA/2

Explanation:

Hope this will help you...!!