Electrolysis problem?
Metallic magnesium can be made by the electrolysis of molten MgCl2.
a)What mass of Mg is formed by passing a current of 5.65 A through molten MgCl2 for 4.00 days?
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Metallic magnesium can be made by the electrolysis of molten MgCl2.
a)What mass of Mg is formed by passing a current of 5.65 A through molten MgCl2 for 4.00 days?
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Verified answer
1A = 6.241E18electrons/s (http://en.wikipedia.org/wiki/Ampere )
5.65A x [ (6.241E18 e- / s) 1A ] x [3600s / hr] x [24hr / d] x 4.00d = 1.22E25 electrons.
Mg^2+ + 2e- ---> Mg
1.22E25 e- x [ 1mole e- / 6.02E23 e- ] x [ 24.3gMg / 2 mole e- ] = 246g Mg.