Question

What is the triple equality for Ca3(PO4)2

Answer 1

Triple equality ( $\equiv$ ) is used to equivalency or showing two substances equivalent. It used for molar mass calculations.

Ca₃(PO4)₂  : The metal cation is Ca²⁺ and  anion formula is PO4^3-

We Used value of the anion charge as the subscript for the cation and use the value of the cation charge as the subscript for the anion : to get compound formula is Ca₃(PO4)₂.

so, can write Triple equality ( $\equiv$ ) for Ca₃(PO4)₂ :

3 Ca²⁺   $\equiv$ 2 PO4^3-

or alternatively 1 mol of Ca₃(PO4)₂   $\equiv$   3 moles of Ca²⁺

1 mol of Ca₃(PO4)₂   $\equiv$   2 moles of PO4^3-