Question

How many atoms are present in
1. SO4^2+
2. CA(OH)2

Answer 1

number of atoms in 1 mole of SO4 is 5 * 6.022*10^23.

so answer for first part is 30.11*10^23 atoms

Answer 2

#so4^2 contain 5 atoms there as # can(oH)2 contains 6.022×10^23×5= 30.11×10^23 atoms are