005 The Activity Series of Metals Virtual Lab by LYTBhyq

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									Chemistry

Main Topic: Virtual Lab: The Activity Series of Metals

Focus: Students will be able to:
    determine the rules governing the activity series of various metals.
    observe several single replacement reactions.

Materials:
    The website http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/flashfiles/redox/home.html
    Lab handout

Procedure
   1. Short pre-lab.
   2. Students will complete lab at home.
   3. HW: short lab report.
   4. Evaluation: lab report, test later.
Name                                                                         (1 pt)          Date                       (1 pt)


Lab Partners                                                                 (1 pt)                                    / 35 pts

                                          Virtual Lab: The Activity Series of Metals

Introduction: When solid metals are allowed to contact solutions of other metals, a single-replacement reaction will occur
    if the solid metal is more reactive than the metal in solution. You need to know the activity series for the more
    important metals, so that you can predict which reactions will occur and which ones will not.

Purposes:
    To determine the relative reactivities of (Mg, Cu, Zn, Ag), (Fe, Cu, Zn, Pb), and (Fe, Pb, Ni, Sn) in single
      replacement reactions with one another.
    To determine the relative reactivities of these 8 metals with HCl.

Materials: The website http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/flashfiles/redox/home.html

Procedure
   1. Go to the above website. Click on “Start”, then follow the directions on each page.

    2. On the first page after clicking “Start”, hold the magnifier over each of the top 4 beakers and “click” to view its
       microscopic contents.
           a. What ion exists in each of the four beakers? (1 pt)


            b. What ions are different among the four beakers?      (1 pt)



            c.   Are the metal ions or the negatively charged anions responsible for the color in the colored solutions?
                                                                                                                             (1 pt)


    3. Do all 4 activities. After you do each activity, click on “Molecular Scale Reactions” at the bottom of the page,
       follow the directions, and watch the animation. You do not have to drag every strip to every solution – just do one
       that worked in the activity.

    4. Activity 1 - the relative activities of Mg, Zn, Cu, Ag. Record your observations below: (4 pts)
                                          Mg(NO3)2         Zn(NO3)2      Cu(NO3)2         AgNO3

                           Mg


                            Cu


                            Zn


                            Ag


    5. Activity 2 - the relative activities of Fe, Cu, Zn, Pb. Record your observations below: (4 pts)
                                           Fe(NO3)2        Zn(NO3)2       Cu(NO3)2        Pb(NO3)2

                            Fe


                            Cu


                            Zn


                            Pb
    6. Activity 3 - the relative activities of Fe, Pb, Ni, Sn. Record your observations below: (4 pts)
                                           Fe(NO3)2         Pb(NO3)2       Ni(NO3)2       Sn(NO3)2

                           Fe


                           Pb


                            Ni


                           Sn


    7. Activity 4 - the relative reactivities of all of these metals with HCl. Record your observations below.   (4 pts)
                Ag           Cu             Fe            Mg          Ni         Pb          Sn          Zn




Conclusion Questions
   1. Using your observations above, rank the eight metals (Mg, Zn, Cu, Ag, Fe, Pb, Ni, Sn) in terms of their relative
      reactivities, from most reactive to least reactive. (4 pts)




    2. Write a balanced equation for the reaction of Cu metal with silver nitrate solution. Add phase notation.     (2 pts)




    3. Write a balanced equation for the reaction of Pb metal with copper(II) nitrate solution. Add phase notation.        (2 pts)




    4. Predict the products of the following reactions:    (1 pt each)


            a. 2AgNO3 (aq) + Ni(s)

            b. Ni(NO3)2 (aq) + 2Ag(s)

            c.   Mg(s) + Sn(NO3)2 (aq)



    5. An unknown metal, M, is found to react with AgNO3, Pb(NO3)2, and Cu(NO3)2 solutions, but not with Ni(NO3)2,
       Mg(NO3)2, or Zn(NO3)2 solutions. Where does the unknown metal, M, appear in your activity series? (2 pts)

								
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