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1) Which of the following oxidation-reduction reactions will be spontaneous in the direction written? Select all...

1) Which of the following oxidation-reduction reactions will be spontaneous in the direction written? Select all that apply.

Mg2+ (aq) + Be (s) → Mg (s) + Be2+ (aq)

Cu2+ (aq) + Zn (s) → Cu (s) + Zn2+ (aq)

Hg2+ (aq) + Cu (s) → Hg (l) + Cu2+ (aq)

Pb2+ (aq) + Cu (s) → Pb (s) + Cu2+ (aq)

Fe2+ (aq) + Pb (s) → Fe (s) + Pb2+ (aq)

2) What is the value (in V) of Eocell for the following reaction?

Sn2+ (aq) + Hg (l) → Sn (s) + Hg2+ (aq)

3) What values of K (the equilibrium constant) and ΔG are expected for a large positive Eocell ?

K less than 1; ΔG negative

K less than 1; ΔG positive

K greater than 1; ΔG negative

These values are not consistently related.

K greater than 1; ΔG positive

4) What is Eocell (in V) for a redox reaction where one electron is transferred with an equilibrium constant (K) of 9.88 x 1012?

5) What is ΔGo (in kJ/mol) for a redox reaction where two electrons are transferred with Eocell = -0.338 V?

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