Question

Identify the precipitate(s) formed (if any) in the following reaction in aqueous solution, Fe(NO₃)₂ + (NH₄)₂CO₃ ->

A)Fe₂(CO₃)3
B)FeCO₃(s)
C)(NH₄)₂CO₃(s)
D)NH₄NO₃(s)
E)No precipitate will be observed

Answer 1

In the reaction between Fe(NO3)2 and (NH4)2CO3, the precipitate formed is FeCO3, as iron (II) carbonate is generally insoluble in water.

Step-by-step explanation:

To identify the precipitate formed in the reaction between Fe(NO3)2 and (NH4)2CO3 in aqueous solution, we need to consider the possible products and solubility rules. When these two compounds react, the potential products are FeCO3 and NH4NO3. According to solubility rules, nitrates are soluble, so NH4NO3 would remain dissolved in water. However, FeCO3 is generally insoluble in water and would precipitate out of the solution as a solid. So, the precipitate formed in this reaction is FeCO3.

The process of identifying precipitates in a chemical reaction involves analyzing each possible ion combination to determine if it results in a solid precipitate. As supported by the given reference, the combination of iron (Fe2+) and carbonate (CO32-) ions typically leads to the formation of a solid precipitate. In this case, Fe2+ from Fe(NO3)2 reacts with CO32- from (NH4)2CO3 to form FeCO3, which is the precipitate.