In Step 4 of the procedure if ammonium phosphate had been added to the metal ion

Question

In Step 4 of the procedure if ammonium phosphate had been added to the metal ion solutions instead of ammonium sulfate. what substances would have been produced? Write the not ionic equations for these reactions. In Step 34 of the procedure, a student was assigned a colorless unknown. The student added five drops of 1.0 M barium chloride solution to 1.0 mL of the unknown solution. A white precipitate formed. In a second experiment, the student added two drops of 05 M NH_3 solution to 1.0 ml. of the unknown solution. A white precipitate formed. The student added five drops of 4.0 M NH_3 to the resulting solution in the second experiment. The white precipitate did not dissolve. Identify the colorless unknown solution. Justify your answer with an explanation. Write the net ionic equations for all reactions.

Explanation / Answer

Net ionic equations are :

1. Ba^2+ (aq) + So4^2- (aq) ----> BaSO4 (s)

2. Mg^2+ (aq) + SO4^2- (aq) ----> no reaction

3. Pb^2+ (aq) + So4^2- (aq) ----> PbSO4 (s)

4. Co^2+ (aq) + So4^2- (aq) ----> No reaction

5.Fe2+ (aq) + So4^2- (aq) ----> No reaction

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