An electroplating unit plates 3.0 g of silver on a brass plate in 3.0 minutes. Find the current used by the unit. The electrochemical equivalent of silver is 1.12 × 10 –6 kg C –1 .

Question

Philoid · Accepted Answer

Given-
Mass of silver deposited, m = 3 g

Time taken, t = 3 min. = 180 s

Electrochemical equivalent of silver, Z = 1.12 × 10⁻⁶ kg C⁻¹

Using the formula, from faraday’s law of electrolysis –

where,

m = the mass of the substance deposited on the electrode

z=electrochemical equivalence

i=current passing

t=time taken

substituting the values

An electroplating unit plates 3.0 g of silver on a brass plate in 3.0 minutes. Find the current used by the unit. The electrochemical equivalent of silver is 1.12 × 10–6 kg C–1.

An electroplating unit plates 3.0 g of silver on a brass plate in 3.0 minutes. Find the current used by the unit. The electrochemical equivalent of silver is 1.12 × 10^–6 kg C^–1.