A Galvanic Cell Consists of a Left Compartment with a Tin

question 85

Multiple Choice

A galvanic cell consists of a left compartment with a tin electrode in contact with 0.1 M Sn(NO₃) ₂(aq) and a right compartment with a lead electrode in contact with 1 $\times$ 10^-3 M Pb(NO₃) ₂(aq) .The relevant reduction potentials are: Pb²⁺ + 2e^- $\to$ Pb
$\varepsilon$ ° = -0.13 V
Sn²⁺ + 2e^- $\to$ Sn
$\varepsilon$ ° = -0.14 V
When this cell is allowed to discharge spontaneously at 25°C,which of the following statements is true?

• A)Electrons will flow from left to right through the wire.
• B)Pb²⁺ ions will be reduced to Pb metal.
• C)The concentration of Sn²⁺ ions in the left compartment will increase.
• D)The tin electrode will be the cathode.
• E)No noticeable change will occur,because the cell is at equilibrium.

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