Question

Calculate the E°_cell for the following reaction:

                Cu²⁺ (aq) + Ni (s) → Cu (s) + Ni²⁺ (aq)

A) (-0.59 ± 0.01) V

B) (-0.09 ± 0.01) V

C) (0.59 ± 0.01) V

D) (0.09 ± 0.01) V

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What is the proper line notation for the following reaction?

Cu (s) + 2Ag⁺ (aq) → Cu²⁺ (aq) + 2Ag (s)

A) Cu²⁺ | Cu || Ag | Ag⁺

B) Ag⁺ | Ag || Cu | Cu²⁺

C) Cu | Cu²⁺ || Ag⁺ | Ag

D) Ag | Ag⁺ || Cu²⁺ | Cu

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In a common car battery, six identical cells each carry out the following reaction where two moles of e- are transferred from Pb to Pb⁴⁺:

Pb + PbO₂ + 2HSO₄^– + 2H⁺ → 2PbSO₄ + 2H₂O (E° = 2.04 V)

For such a cell, calculate ΔG° at 25°C

A) (-98 ± 1) kJ

B) (-394 ± 1) kJ

C) (-787 ± 1) kJ

D) (-197 ± 1) kJ