Factors Affecting Reaction Rate and Current

Faraday s law correlates the total charge, Q [C], passed through a cell to the amount of product, N [mol]  

When we pass a 2 A current for 3 h through a solution containing copper ions, we are able to collect 7.11 g of pure copper. We can now find what was the oxidation state of the copper ions in the initial solution. The total charge passed through the solution is 21,600 C. Upon converting the mass of copper into moles (0.11 moles), we can use equatiou (1.3.12) to find n = 2. Thus our starting solution contained Cu ions. 

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FACTORS AFFECTING REACTION RATE AND CURRENT 1.4.1 Current, current density, and rate... 

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