When a Solution of a Certain Gadolinium Salt Is Electrolyzed

question 57

Multiple Choice

When a solution of a certain gadolinium salt is electrolyzed with a current of 1.0 A for 2.0 h, 0.025 mol of Gd metal forms. Calculate the charge on the gadolinium ion in the salt.

• A) +4
• B) +3
• C) +2
• D) +1
• E) None of the above

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