If 8686 C of charge is passed through molten magnesium chloride,calculate the number of moles of Mg(l)produced.

Question

Quizplus · Accepted Answer

The electrochemical reaction for the production of magnesium from molten magnesium chloride is: Mg2+(l) + 2e- -> Mg(l).
The Faraday constant, F = 96,485 C/mol, represents the amount of charge required to produce 1 mol of Mg(l).
Therefore, the number of moles of Mg(l) produced can be calculated as: 
moles of Mg(l) = (8686 C) / (2 * F)
moles of Mg(l) = 0.0450 mol. 
Therefore, the best choice is B.

If 8686 C of Charge Is Passed Through Molten Magnesium