Part B What substance is produced at the anode during the electrolysis of molten

Question

Part B

What substance is produced at the anode during the electrolysis of molten calcium bromide, CaBr2? Assume standard conditions.

Part C

What substance is produced at the cathode during the electrolysis of a mixture of molten calcium bromide, CaBr2(l), and molten magnesium iodide, MgI2(l)? Assume standard conditions

Part D

What substance is produced at the anode during the electrolysis of a mixture of molten calcium bromide, CaBr2(l), and molten magnesium iodide, MgI2(l)? Assume standard conditions.

Explanation / Answer

B. Negative electrode ( cathode )
Ca2+ + 2e- >> Ca

positive electrode ( anode )
2 Br- >> Br2 + 2e-

For calcium bromide........

C) At the cathode: Ca2+ + 2e? --> Ca
D) At the anode: 2Br? ? 2e? --> Br2


For Magnesium iodide.....

C) At the cathode: Mg2+ + 2 e? --> Mg

D) At the anode: 2 I? ? 2 e? --> I2

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