Chemistry help- How to attack these questions?

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J.C.

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These questions have no formula to solve, according to my teacher, and I am having trouble figuring out how to answer them. Show me? Help?

1. Electrolysis of an alkaline earth metal chloride using a current of 5.00 A for 748 s deposits 0.471 g of metal at the cathode. What is the identity of the alkaline earth metal?

2. Aluminum is produced commercially by the electrolysis of Al2O3 in the presence of a molten salt. If a plant has a continuous capacity of 1.00 million amp, what mass of aluminum can be produced in 2.00 h?

3. The electrolysis of BiO+ produces pure bismuth. How long would it take to produce 10.0 g of Bi by the electrolysis of a BiO+ solution using a current of 25.0 A?
 
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