Complete this equation to show how hydrofluoric acid HF acts

Complete this equation to show how hydrofluoric acid, HF, acts as a Brønsted-Lowry acid in water.

HF+H2O=?

Complete these Brønsted-Lowry reactions.

HPO4^2- +H^+=?

HPO4^2- +OH^-=?

Solution

HF + H2O = F- + H3O+

HPO4^2- +H^+ = H2PO4 ^-1

HPO4^2- +OH^- = PO4^3- + H2O