What Is the Concentration of Cu²⁺(aq)in the Following Cell at 25

question 61

Multiple Choice

What is the concentration of Cu²⁺(aq) in the following cell at 25 °C if the cell voltage is 1.253 V?
Zn(s) ∣ Zn²⁺ (aq,0.125 M) Cu²⁺(?) ∣ Cu(s)
Cu²⁺(aq) + 2 e^- → Cu(s) E° = 0.340 V
Zn²⁺(aq) + 2 e^- → Zn(s) E° = -0.763 V

• A)0.6 M
• B)1 × 10^-2 M
• C)1 × 10^-6 M
• D)9 × 10^-4 M
• E)4 × 10^-4 M

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