15. What is the cell potential for an electrochemical cell at 298 K with a copper metal electrode immersed in a 2.0 × 10?³ M copper sulfate solution in one compartment and a copper metal electrode immersed in a 1.5 M copper sulfate solution in the other compartment? Cu²?(aq) + 2 e? ? Cu(s) E° = +0.342 V a. +0.342 V b. -0.085 V c. +0.085 V d. +0.427 V e. +0.257 V
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