The scheme of transformations is given: P – P2O5- H3PO4-; Ba3 (PO4) 2 Write the molecular equation of the reactions.

The scheme of transformations is given: P – P2O5- H3PO4-; Ba3 (PO4) 2 Write the molecular equation of the reactions. Consider the latter transformation from the point of view of the theory of electrolytic dissociation. (TED)

Consider the homologous series of transformations of chemicals from phosphorus to barium phosphate salt.

1) A chemical reaction takes place between substances such as phosphorus and oxygen. We get pentavalent phosphorus oxide.

4 P + 5 O2 = 2 P2O5

2) Next, we get phosphoric acid from pentavalent phosphorus oxide and water.

P2O5 + 3 H2O = 2 H3PO4

3) Reaction of neutralization of phosphoric acid and potassium hydroxide. The potassium phosphate salt and water are formed.

H3PO4 + 3 KOH = K3PO4 + 3 H2O

4) Potassium phosphate enters into a chemical reaction with the barium chloride salt and the potassium chloride salt and the divalent barium phosphate salt are formed.

2 K3PO4 +3 BaCl2 = 6 KCl + Ba3 (PO4) 2.