Problem: You are developing an analytical method to measure the following reaction: CaCO3(s) + 2 e– ⇌ Ca(s) + CO32– (aq)      E°+ = ?Given the following information, what is the expected standard potential (Eo+) for the above reaction?     CaCO3(s) + 2 e– → Ca(s) + CO32– (aq)            Ksp = 6.0 × 10–9     Ca2+(aq) + 2 e– → Ca(s)                                   E°– = –2.868

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You are developing an analytical method to measure the following reaction: 

CaCO3(s) + 2 e– ⇌ Ca(s) + CO32– (aq)      E°+ = ?

Given the following information, what is the expected standard potential (Eo+) for the above reaction?

     CaCO3(s) + 2 e → Ca(s) + CO32– (aq)            Ksp = 6.0 × 109

     Ca2+(aq) + 2 e → Ca(s)                                   E° = –2.868

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