Will a precipitate form when an aqueous solution of (NH4)4CO3 is mixed with Fe(NO3)3

Solubility and Precipitation:

1. Alkali Metal Cations, ammonium cations= Soluble.
2. Nitrate Anions, Acetate Anions= Soluble.
3. Halogen anions= Soluble...except: Ag+, Cu+, Hg2 +2, and Pb+2.
4. Sulfate Anions= Soluble...except: Ba +2, Ca+2, Hg2 +2, Pb+2, Sr+2.
5. Anything else is insoluble...except: Ba(OH)2, Ca(OH)2, Sr(OH)2, CaS, SrS, BaS.

To determine if a precipitate will form when an aqueous solution of (NH4)4CO3 is mixed with Fe(NO3)3, we need to consider the solubility of the possible compounds that can form.

Step 1: Write out the balanced equation for the reaction:
(NH4)4CO3 + Fe(NO3)3 -> ?

Step 2: Identify the possible products of the reaction:
The possible products are NH4NO3, CO2, FeCO3, and H2O.

Step 3: Determine the solubility of each of the possible products:
- NH4NO3: Ammonium nitrate is soluble in water.
- CO2: Carbon dioxide is a gas and will escape into the atmosphere.
- FeCO3: Iron(II) carbonate has low solubility in water.

Step 4: Predict if a precipitate will form:
Since FeCO3 has low solubility in water, it is likely to form a precipitate when Fe(NO3)3 reacts with (NH4)4CO3. Thus, a precipitate of FeCO3 is expected to form when an aqueous solution of (NH4)4CO3 is mixed with Fe(NO3)3.

Remember that this prediction is based on the assumption that the reaction goes to completion, and other factors such as concentration and temperature can also influence the formation of a precipitate.