Exercise 8.76 - Enhanced with Feedback Part A Suppose you wanted to cause Pb2+ i

Question

Exercise 8.76 - Enhanced with Feedback

Part A

Suppose you wanted to cause Pb2+ ions to come out of solution as solid Pb. Which metal(s) could you use to accomplish this?

Check all that apply.

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Exercise 8.76 - Enhanced with Feedback

Activity series of metals Li(s)Li+(aq)+e Most reactive K(s)K+(aq)+e Most easily oxidized Ca(s)Ca2+(aq)+2e Strongest tendency to lose electrons Na(s)Na+(aq)+e Mg(s)Mg2+(aq)+2e Al(s)Al3+(aq)+3e Mn(s)Mn2+(aq)+2e Zn(s)Zn2+(aq)+2e Cr(s)Cr3+(aq)+3e Fe(s)Fe2+(aq)+2e Ni(s)Ni2+(aq)+2e Sn(s)Sn2+(aq)+2e Pb(s)Pb2+(aq)+2e H2(g)2H+(aq)+2e Cu(s)Cu2+(aq)+2e Least reactive Ag(s)Ag+(aq)+e Most difficult to oxidize Au(s)Au3+(aq)+3e Least tendency to lose electrons

You may want to reference ( pages 347 - 356) Section 8.9 while completing this problem.

Part A

Suppose you wanted to cause Pb2+ ions to come out of solution as solid Pb. Which metal(s) could you use to accomplish this?

Check all that apply.

Check all that apply. Mn Ag Zn Au Cr Fe Ni Ca

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Explanation / Answer

Suppose you wanted to cause Pb2+ ions to come out of solution as solid Pb. Which metal(s) could you use to accomplish this?

thereofre, we need much more active metals than Pb, so those X(s) form X+ ions

from the list,

all H2, Cu, Ag, Au, will NOT work

choose all other, that is

Mn Zn Cr Fe Ni Ca

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