An electroplating unit plates 3.0g of silver on a brass plate in 3.0mi

1.	An electroplating unit plates 3.0g of silver on a brass plate in 3.0minutes. Find the current used by the unit. The electrochemical equivalent of silver is 1.12 x 10-6kg/C.
Answer» t = 3min = 180sec w = 2g E.C.E = 1.12 × 10^–6kg/c => 3 × 10^–3 = 1.12 × 10^–6 × i × 180 => i = (3 x 10^-3)/(1.12 x 10^-6 x 180) = 1/6.72 x 10² ≈ 15Amp.

An electroplating unit plates 3.0g of silver on a brass plate in 3.0minutes. Find the current used by the unit. The electrochemical equivalent of silver is 1.12 x 10-6kg/C.

Answer»

t = 3min = 180sec w = 2g

E.C.E = 1.12 × 10^–6kg/c

=> 3 × 10^–3 = 1.12 × 10^–6 × i × 180

=> i = (3 x 10^-3)/(1.12 x 10^-6 x 180) = 1/6.72 x 10² ≈ 15Amp.