Use the standard half-cell potentials listed below to
Use the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C.
Mg(s) + Cu2+(aq) ? Cu(s) + Mg2+(aq)
2.72 V
-2.04 V
1.36 V
-1.36 V
2.04 V
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A 2 farad capacitor is charged up to 400v by a dc power supply. How long in seconds would it take to discharge the capacitor to a safe stored energy level of 1 joule using a 1k ohm high wattage resistor bank.
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