Problem: Rank the following in increasing ability as oxidizing agents. Sn2+(aq)      Cl2(g)      Ag+(aq)      Cu2+(aq)       K+(aq)

FREE Expert Solution

Recall the mnemonics LEO GER.

Lose               Gain

Electron         Electrons

Oxidation       Reduction


The ease to remove an electron from an element is also related to cell potential.

Larger (↑) E° stronger oxidizing agent


Gather the reduction potentials.

Sn2+(aq) + 2e→ Sn(s)           Ered =  -0.14V

Cl2(g) + 2e- → 2 Cl-(aq)          Ered =  1.36 V

Ag+(aq) + e- → Ag(s)               Ered =  0.80 V

Cu2+(aq) + e- → Cu(s)             Ered = 0.34 V

K+(aq) + e- → K(s)                    Ered = -2.92 V


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Problem Details

Rank the following in increasing ability as oxidizing agents. 

Sn2+(aq)      Cl2(g)      Ag+(aq)      Cu2+(aq)       K+(aq)