Question

Consider adding a single H⁺ to the polyatomic ion phosphate. What is the formula of the new ion (including its charge)? What is the name of the new ion?

Answer 1

$H^{+} +PO^{3-}_{4}\to H_2PO^{2-}_{4}$

The name of the new ion is Hydrogen Phosphate with the charge 2-