1. Describe the process by which Ag+ ions are precipitated out of solution. 4. I

Question

1. Describe the process by which Ag+ ions are precipitated out of solution.

4. In your testing, several precipitates are formed, and then dissolved as complexes. Select threeof these situations for which to write a balanced reaction equation.
5. When Mn2+ ions are separated from the mixture, they go through a series of oxidizing andreducing steps. Write the reaction equations that describe this process.
6. The NH3 solution is used, in three separate instances, to separate two ions. In each of thesecases, one ion forms a precipitate and the other ion remains in solution as a complex.Describe each of these instances, using reaction equations.
7. Al3+ and Zn2+ ions are amphoteric. Describe how the amphoteric nature of these ions isshown in your testing.

Explanation / Answer

1. The Ag+ can be precipitated out by the following reaction

Ag + NaCL --> AgCl (s) + Na+

So we will obtain ppt of AgCl by adding NaCl in it, can be filtered and washed and dried.

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