Question

Part A) Electrolysis is performed on a mixture of CuBr(l), AgBr(l), MgBr2(l), and NiBr2(l). Which of the following is produced at the cathode?

A) Cu(s)

B) Ag(s)

C) Mg(s)

D) Ni(s) Part B)You are given some ferrous iodide, FeI2 , and are asked to extract the iron through electrolysis. What can be said about the merits of molten versus aqueous FeI2 ? You are given some ferrous iodide, \rm FeI_2, and are asked to extract the iron through electrolysis. What can be said about the merits of molten versus aqueous \rm FeI_2? A)You'll have to perform electrolysis on the molten salt because you can't get iron metal from electrolysis of the aqueous solution. B) You'll have to perform electrolysis of the aqueous solution because you can't get iron metal from electrolysis of the molten salt. C) Electrolysis of either the molten or aqueous salt will produce solid iron. D) Electrolysis will not produce solid iron regardless of whether the salt is molten or aqueous. Part C) For which of the following aqueous salts will electrolysis produce hydrogen gas and oxygen gas? Check all that apply. A) NiI2(aq) B) NaF(aq) C) NiF2(aq) D) NaI(aq) E) CuBr(aq)

Answer 1