Write the reaction equations: phosphorus phosphorus (V) oxide phosphoric acid potassium phosphate

| August 29, 2021 | education

Write the reaction equations: phosphorus phosphorus (V) oxide phosphoric acid potassium phosphate calcium phosphate phosphorus

To carry out the above chain of transformations, we need to carry out two reactions.

Phosphorus react with oxygen. As a result of the reaction, pentavalent phosphorus oxide is formed. The chemical equation for the reaction is as follows.

4 P + 5 O2 = 2 P2O5

Pentavalent phosphorus oxide react with water, as a result of the reaction orthophosphoric acid is formed. The chemical equation for the reaction is as follows.

P2O5 + 3 H2O = 2 H3PO4

Phosphoric acid react with sodium hydroxide. As a result of the reaction, sodium phosphate is formed and water is released.

H3PO4 +3 NaOH = Na3PO4 + 3 H2O

The reaction of sodium phosphate and potassium chloride, as a result of the reaction, calcium phosphate is formed, which precipitates, and sodium chloride is also formed.

2 Na3PO4 + 3 CaCl2 = Ca3 (PO4) 2 + 6 NaCl

Calcium phosphate react with sulfuric acid. As a result of the reaction, phosphoric acid and calcium sulfate are formed, which precipitate ..

Ca3 (PO4) 2 + 3 H2SO4 = 2 H3PO4 + 3 CaSO4.



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