Question

15. Calculate the percentage of phosphorus in:
(a) Calcium hydrogen phosphate Ca(H,PO 22
(b) Calcium phosphate Ca,(PO3)2​

Answer 1

Answer:

Molecular mass of Ca(H2Po4)2 is 234g

Atomic mass of phosphorus is 30g

Explanation: Percentage of phosphorus = (2×30 / 234) × 100 = 25.64%