What is the correct formula unit for the ionic compound, potassium phosphate?

Question

a
K3PO4

b
K2HPO4

c
K2PO4

d
P3PO4

Answer 1

The correct formula unit for the ionic compound potassium phosphate is:

a K3PO4

Potassium phosphate consists of three potassium ions (K⁺) for each phosphate ion (PO₄³⁻) to balance the charge.