Seperation and Qualitative Analysis of Cations Post Lab Please Help me complete

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Seperation and Qualitative Analysis of Cations Post Lab

Please Help me complete this post Lab. I have very little time to complete it. It would mean the entire world to me if someone could help me with these answers.

l. Describe the process by which Ag ions are precipitated out of solution. 2. A disproportion occurs solution reacts with Hg2Cl2. Write a balanced reaction equation when NH3 for this event. 3. Write half-reactions that show how H202 can act as either an oxidizing agent or a reducing agent, and describe where each of these situations occurred in your testing. 4. In your testing, are and then as complexes. Select three of these situations for which to write a balanced reaction equation. 5. When Mn ions are separated from the mixture, through a series of oxidizing and reducing steps. Write the reaction equations that describe this process. 6. The NH3 solution is used, in three separate instances, to these cases, one ion forms a precipitate and the other ion remains in solution as complex a Describe each of these instances, using reaction equations. 7, AP and Zn ions are amphoteric. Describe how the amphoteric nature of these ions is shown in your testing.

Explanation / Answer

(1) Ag+ Ions can be precipitated out by reacting with solution containing Cl- ions as AgCl.

Ag+ (aq.) + Cl- (aq.) --------------> AgCl (s)

(2)

The reaction in which the same element undergoes both oxidation and reduction simultaneously is called disproportionation reaction.

Hg2Cl2 + 2 NH3 --------------> Hg + HgNH2Cl + NH4Cl

      +1                                      0       +2

So Hg undergoes oxidation and reduction

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