Sodium Phosphate and Ammonium Molybdate reaction

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Homework Statement

I need to find the products of the reaction between sodium phosphate and ammonium molybdate. I know one of the products is a yellow precipitate

Homework Equations

Na3PO4(aq) + (NH4)2MoO4(aq) =??

The Attempt at a Solution

I think it is just sodium molybdate and ammonium phosphate, but I need to know which is the precipitate in the reaction

 

[Borek]

Both your questions are answered in any analytical chemistry book and on many sites on the web. Please check them first, and we will gladly help if you will still have any questions.

 

[Blueshift5]

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Your prediction is correct, the products of the reaction between sodium phosphate and ammonium molybdate are sodium molybdate and ammonium phosphate. The yellow precipitate formed is sodium molybdate, which has a characteristic yellow color. This reaction is commonly used in chemistry labs to test for the presence of phosphate ions in a solution. The formation of a yellow precipitate indicates the presence of phosphate ions. The overall reaction can be represented as:

3Na3PO4(aq) + 2(NH4)2MoO4(aq) → 3Na2MoO4(s) + 2(NH4)3PO4(aq)

It is important to note that this reaction is not a complete precipitation reaction, as some of the reactants remain in solution. Therefore, the actual products in solution would be a mixture of sodium, ammonium, and phosphate ions. The solid sodium molybdate can be separated from the solution through filtration, and the remaining solution can be tested for the presence of ammonium and phosphate ions using appropriate tests.