Chemical Reaction Between Ammonium Molybdate Solution and Na₃PO₄

How does the reaction between ammonium molybdate solution and Na₃PO₄ occur?

In what conditions does a canary yellow precipitate form?

Answer:

The reaction between ammonium molybdate solution and Na₃PO₄ occurs in the presence of concentrated HNO₃, resulting in the formation of a canary yellow precipitate.

The chemical reaction between ammonium molybdate solution and Na₃PO₄ takes place when these two substances are mixed in the presence of concentrated HNO₃. This reaction leads to the formation of a canary yellow precipitate. The presence of conc. HNO₃ is crucial in this reaction as it serves as a catalyst for the formation of the precipitate.

The canary yellow precipitate formed in this reaction contains a certain number of metal atoms in its formula. The presence of 12 molybdenum atoms in the formula of the precipitate indicates the specific composition of the compound, known as ammonium phosphomolybdate [(NH₄)₃PO₄.12MoO₃]. This compound is responsible for the distinct yellow color observed during the reaction.

The reaction between ammonium molybdate solution and Na₃PO₄ in the presence of concentrated HNO₃ highlights the intricate nature of chemical reactions and the importance of specific conditions in determining the products formed.