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A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2Cr³+ (aq) + 3 Ca(s) → 2Cr(s) +
Posted: Wed May 25, 2022 6:54 am
by answerhappygod
- A Galvanic Cell At A Temperature Of 25 0 C Is Powered By The Following Redox Reaction 2cr Aq 3 Ca S 2cr S 1 (103.21 KiB) Viewed 14 times
A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2Cr³+ (aq) + 3 Ca(s) → 2Cr(s) + 3Ca²+ (aq) Suppose the cell is prepared with 6.35 M Cr³+ in one half-cell and 0.492 M Ca²2+ in the other half. Calculate the cell voltage under these conditions. Cr3+ (aq) + 3e → Cr(s) EO red = -0.744 V Ca2+ (aq) + 2e →→ Ca(s) Ered = -2.868 V The standard cell potential (EO) for this galvanic cell is +2.124 V. There are 6 moles of electrons transferred during to operate this galvanic cell. Under these conditions, the reaction quotient is 0.00295 and the cell volatage is 2.15 V. In order to increase the cell voltage for this cell, Q < 1