ElectrochemistryHard
Question
Three faradays of electricity was passed through an aqueous solution of iron (II) bromide. The mass of iron metal (at. mass 56) deposited at the cathode is -
Options
A.56 g
B.84 g
C.112 g
D.168 g
Solution
Mole of Fe deposited = 
× 3 = 1.5 mole
WFe = 1.5 × 56 = 84 gm.
× 3 = 1.5 moleWFe = 1.5 × 56 = 84 gm.
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