Question

Calculate the number of ions in 3.43 g of calcium phosphate. (3) [Ca-40,P=31,0-16]​

Answer 1

Explanation:

Molecular weight of CaO =40+16=56 g

56 g of CaO contains =6.02×10 23 ions of calcium.

3.2 g of CaO contains = 56

3.2×6.02×10 23

=0.344×10 23 ions of calcium