List a series of test that would determine the order of activity (least active to most active) for the following metals: Zn, Mn, and Ag.
Zn(s) + MnCl2 ==>
Zn(s) + AgNO3 ==>
Mn(s) + AgNO3 ==>
Mn(s) + Zn(NO3)2 ==>
The above four will tell you if Zn is above Mn and Ag and if Mn is above Ag and Zn.
You will need two more to check where Mn is with respect to Ag
To determine the order of activity for the metals Zn, Mn, and Ag, we can perform a series of displacement reactions. Here is a step-by-step procedure:
1. Gather the required materials: Zn metal, Mn metal, Ag metal, hydrochloric acid (HCl), and copper sulfate solution (CuSO4).
2. Start by testing the reactivity of Zn. Place a small piece of Zn metal in a test tube and add HCl. If Zn is more reactive than H, a hydrogen gas (H2) will be produced, and the Zn metal will dissolve. Note down your observation.
3. Repeat the same test with Mn. Place a small piece of Mn metal in a test tube and add HCl. If Mn is more reactive than H, a similar reaction will occur. Note down your observation.
4. Finally, test the reactivity of Ag. Place a small piece of Ag metal in a test tube and add HCl. If Ag is more reactive than H, no reaction will take place, since Ag is a noble metal and does not readily react with acids. Note down your observation.
5. Next, perform displacement reactions with the metals and copper sulfate solution. Take separate test tubes and add small pieces of each metal (Zn, Mn, and Ag) to individual tubes containing copper sulfate solution. Observe any color changes or precipitation that occurs.
6. Zn is more reactive than both Mn and Ag. So, if Zn is added to copper sulfate solution, it will displace Cu from the solution, resulting in a reddish-brown precipitate of Cu. In contrast, Mn and Ag will not displace Cu because they are less reactive. Note down your observations.
Based on these tests, you can conclude the order of activity from least active to most active: Ag < Mn < Zn.
Remember, always exercise caution and follow proper safety guidelines while carrying out chemical experiments.