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chemistry

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Hi I sent this question a few days ago but did not get it answered I think it may have been mixed up in the jumble.

Purpose:
The purpose of this lab exercise is to construct a table of relative strengths of oxidizing and reducing agents. By completing this exercise, you will see how more extensive tables of relative strengths of oxidizing and reducing agents have been developed.

Procedure:
Using the results from the three tables below, prepare a single table of relative strengths of oxidizing and reducing agents



Table 1. Reactions of metals and nonmetals with solution of ions

I2(aq) Cu2+(aq) Ag+(aq) Br2(aq)
I-(aq) X X T T
Cu(s) T X T T
Ag(s) X X X T
Br-(aq) X X X X



Table 2.Reaction of metals and solutions of ions
Ag+(aq) Pb2+(aq) Cu2+(aq) Zn2+(aq)
Ag(s)X X X X
Pb(s)T X T X
Cu(s)T X X X
Zn(s)T T T X




Table 3. Reactions of nonmetals with solutions of ions
Br-(aq) Cl-(aq) I-(aq)
Br2(aq) X X T
Cl2(aq) T X T
I2(aq) X X X

Legend:
T = evidence redox reaction occured
X = no evidence of redox reaction

*Please note

For table 1 I2(aq), Cu2+(aq), Ag+(aq) and Br2(aq) are supposed to be shifted to the right since they are horizontal.
I-(aq), Cu(s), Ag(s) and Br-(aq) are vertical.



For table 2
Ag+(aq), Pb2+(aq), Cu2+(aq) and Zn2+(aq) are supposed to be shifted to the right since they are horizontal.
Ag(s), Pb(s), Cu(s) and Zn(s) are vertical.



For table 3
Br-(aq), Cl-(aq) and I-(aq) are supposed to be shifted to the right since they are horizontal.
Br2(aq), Cl2(aq) and I2(aq) are vertical.

  • chemistry -

    Yes, you have posted this problem several times. I think the reason no one has responded is because no one understands the question. I responded the first time you posted and suggested that these boards don't have control over spacing and suggested you put in dots (periods) to make the separation into columns. I also wrote four columns using periods to separate them into separate units to show you how it might be done. I don't think anyone will be able to help until you are able to make your post understandable.

  • chemistry -

    No problem, I will write it as you say:)

  • chemistry -

    Purpose:
    The purpose of this lab excersise is to construct a table of relative strengths of oxidizing and reducing agents. By completing this excersise, you will see how extensive tables of relative strengths of oxidizing and reducing agents have been developed.

    Procedure:
    Using the results from the three tables below, please prepare a single table of relative strengths of oxidizing and reducing agents.

    Reactions of metals and non metals with solution of ions

    Reaction 1: I2(aq)Cu^+2(aq) Ag^+(aq)Br2(aq)

    Column 1---Column 2---Column 3---Column 4---Column 5

    I-(aq)---X---X---T---T
    Cu(s)---T---X---T---T
    Ag(s)---X---X---X---T
    Br-(aq)---X---X---X---X

    Reaction of metals and solution of ions

    Reaction 2: Ag+(aq)Pb2+(aq)Cu2+(aq)Zn2+(aq)

    Column 1---Column 2---Column 3---Column 4---Column 5

    Ag(s)---X---X---X---X
    Pb(s)---T---X---T---X
    Cu(s)---T---X---X---X
    Zn(s)---T---T---T---X

    Reactions of nonmetals with solutions of ions

    Column 1---Column 2---Column 3---Column 4

    Br2(aq)---X---X---T
    Cl2(aq)---T---X---T
    I2(aq)---X---X---X

    Legend: T = evidence redox reaction occured
    X = no evidence of redox reaction

  • chemistry -

    *Forgot to add, reaciton 3 is Br-(aq) Cl-(aq) I-(aq)

  • chemistry -

    Look at reaction 2. I will focus on that. Obviously this is a good bit of work and I can't do the entire problem for you. But this will give you an idea what to do.
    Observations:
    Ag(s) reacts with none of the 4 (solutions of Ag^+2, Pb^+2, Cu^+2, Zn^+2}. So Ag(s) goes at the bottom of the table for now although there may be some metals below silver when you finish with the entire table.
    Cu(s) reacts with (Ag^+ solution) so Cu goes above Ag ion. It is below the others, though, for it doesn't react with them. The reaction is Cu(s) + 2Ag^+ ==> Cu^+2 + 2Ag.
    Likewise, Pb(s) replaces Ag^+ and Cu^+2 but not replacre Zn^+2. (We ignore the Pb/Pb^+2 for obvious reasons). So Pb goes above Ag but Zn goes above Pb. In the same way, Zn is above Ag^+, above Pb^+2, above Cu^+2, but we ignore reaction with Zn^+2. That is all of the information you can get from Reaction 2. But it shows you how it is done. Do the same thing for other reactions and build the entire table. I hope this helps you get started.

  • chemistry -

    When I finish with the other two reactions, would you mind reviewing my work?

  • chemistry -

    I think it will be too much information to try to get into one post. An alternative is to look in one of the tables they speak of in the problem and use that as a guide to the correct order.

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