How many grams of aluminum may be formed by the passage of 6
How many grams of aluminum may be formed by the passage of 60,714 C through an electrolytic cell that contains a molten aluminum salt.
Solution
First convert the charge to Faradays
 Q = 370C/ (96500 C/F) = 3.8341x10-3 F
 First convert the charge to Faradays
 Q = 370C/ (96500 C/F) = 3.8341x10-3 F
 .
 The reaction for the reduction of aluminium is thefollowing
 .
 Al3+ +         3e-                    ---->          Al(s)
                    3.834196x10-3F                       xmol
 .
 Using the stoichiometric equation we make a rule of 3 to findout x.
 .
 x = (3.834169x10-3)(1)/3 = 1.15025x10-3mol  
 .
 m = (1.15025x10-3 mol)( 27 g/mol) = 0.034507 g

