An electrochemical cell based on the following reaction has a standard cell voltage (E°_cell) of 0.48 V: Sn(s) + Cu²⁺(aq) $\rarr$ Sn²⁺(aq) + Cu(s)
What is the standard reduction potential of tin(II) ? (E°(Cu²⁺/Cu) = 0.34 V)

Question

An electrochemical cell based on the following reaction has a standard cell voltage (E°_cell) of 0.48 V: Sn(s) + Cu²⁺(aq)

\rarr

Sn²⁺(aq) + Cu(s)
What is the standard reduction potential of tin(II) ? (E°(Cu²⁺/Cu) = 0.34 V)

Quizplus · Accepted Answer

The standard cell voltage, E°_cell, can be expressed in terms of the reduction potentials of the half reactions as follows: E°_cell = E°(reduction potential of the cathode) - E°(reduction potential of the anode) Using the given reduction potential for copper, we can find the reduction potential for the other half reaction: E°_cell = 0.34 V - E°(reduction potential of Sn2+) 0.48 V = 0.34 V - E°(reduction potential of Sn2+) E°(reduction potential of Sn2+) = -0.14 V Therefore, the answer is (A) -0.14 V.

An Electrochemical Cell Based on the Following Reaction Has a Standard