Write the reaction equation: Na-NaOH-NaH2PO4-Na3PO4-H3PO4-P2O5

univerkov | September 18, 2021 | education

1. Formation of sodium hydroxide.
2Na + 2H2O = NaOH + H2.

2. Reaction of sodium dihydrogen phosphate with dilute alkali.
NaH2PO4 + NaOH = Na2HPO4 + H2O.

3. Hydrophosphate in reaction with alkali forms phosphate.
Na2HPO4 + NaOH = Na3PO4 + H2O.

4. Getting orthophosphoric acid.
Na3PO4 + 3HCl = 3NaCl + H3PO4.

5. Decomposition reaction.
2H3PO4 = P2O5 + 3H2O.

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