Concept explainers
The overall reaction for the electrolytic production of aluminum by means of the Hall process may be represented as
At 1000°C, the standard free-energy change for this process is 594 kJ/mol. (a) Calculate the minimum voltage required to produce 1 mole of aluminum at this temperature. (b) If the actual voltage applied is exactly three times the ideal value, calculate the energy required to produce 1.00 kg of the metal.

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Chapter 21 Solutions
CHEMISTRY 1111 LAB MANUAL >C<
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- If the molar conductivity at infinite dilution of HAC is A0 = 390.5 S cm² mol¹. Calculate the Arrhenius conductivity of a 9.3% by weight solution of HAc with a pH of 3.3. Data: molecular weight of HAC is 60.05 g/mol and the density of the solution is 1 g/cm³.arrow_forwardIf the molar conductivity at infinite dilution of HAC is A0 = 390.5 S cm² mol¹. Calculate the Arrhenius conductivity of a 9.3% by weight solution of HAc with a pH of 3.3. Data: molecular weight of HAC is 60.05 g/mol and the density of the solution is 1 g/cm³.arrow_forwardDetermine the distance between the metal and the OHP layer using the Helm- holtz model when the electrode's differential capacitance is 145 μF cm². DATA: dielectric constant of the medium for the interfacial zone &r= lectric constant of the vacuum &0 = 8.85-10-12 F m-1 = 50, die-arrow_forward
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