Question

When molten lithium chloride (licl) is electrolyzed, lithium metal is formed at the cathode. If current efficiency is 75% then how many grams of lithium are liberated when 1930 c of charge pass through the cell?

Answer 1

Hii dear,

# Answer-

Weight of the lithium metal liberated is 0.105 grams.

# Explaination-

Current efficiency = current passed actualy/current passed experimently ×100

Moles of metal = Ect/96500

Moles of metal = 1930×75%×1/96500

Moles of metal = 0.015 mol

Weight of metal = 0.015×7 = 0.105 grams

Weight of the lithium metal liberated is 0.105 grams.

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