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Part A What mass of calcium can be produced by this process if a current of...

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Chemistry

Part A What mass of calcium can be produced by this process if acurrent of 6300 A is applied for 39 h ? Assume that theelectrolytic cell is 65 % efficient. Part A What mass of calciumcan be produced by this process if a current of 6300 A is appliedfor 39 h ? Assume that the electrolytic cell is 65 % efficient.Part B What is the minimum voltage needed to cause theelectrolysis?

Part B

How many minutes are needed to plate out 22.00 g Mg from moltenMgCl2, using 3.00 A of current?

Answer & Explanation Solved by verified expert
4.1 Ratings (816 Votes)

part-A   Ca+2 + 2e- -------> Ca

                       Z= 2

             W   = MCt/ZF

                    = 40*6300*6*60*60/2*96500   = 28203.1g

part-B   W   = MCt/ZF

              Mg+2 + 2e- --------> Mg

                          Z = 2

                     W = 22

                     M = 24

                      F = 96500c

                      C= 3A

            W   = MCt/ZF

             t     = WZF/MC

                   = 22*2*96500/24*3   = 58972.2sec    = 58972.2/60   = 982.87min

             
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