Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter19: Principles Of Chemical Reactivity: Electron Transfer Reactions
Section: Chapter Questions
Problem 49PS: Electrolysis of a solution of CuSO4(aq) to give copper metal is carried out using a current of 0.66...
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Step 1
Question is based on first law Faraday's law of electrolytes. i.e., amount of substance deposited is directly proportional to charge supplied during electrolysis.
To find out total charge supplied from equation is Q=It
charge present on 1 mol of electrons i.e, 1 faraday or 96500 coulombs
stoichiometry of the reduction occurring
Step 2
35.5 g of chlorine gas is evolved when 96500 coulombs of charge is supplied.
current supplied= 4.65 amp
Time period =340 minutes or 340×60 seconds
96500 coulombs will release 35.5 g of chlorine
4.65×340×60 coulombs will deposit = ?
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