Exam 3- Worksheet 21Supplemental InstructionIowa State UniversityLeader: SethCourse: Chem 178Instructor: KingstonDate: Monday, 4/5/10Announcements1. Exam 3- Wednesday, April 14Warmup- Let’s outline today’s lecture. Talk about these questions in groups.1. What is standard state?2. What equation do we use when we are not at standard state?3. What is a concentration cell? What is Eocell for a concentration cell?4. What is electrolysis? 5. What three questions can we ask with electrolysis? Nernst Equation ProblemElectrolysis ProblemUseful information: 1 J= 1 C*V1 A= 1 C/s1 W= 1 J/sF=96485 C/mol1 kWh= 3.6 x 106 JThe atomic weight of Mg is 24.3 g/mol.Calculate the number of kilowatt-hours of electricity (kWh) that are required to produce 1.50 kg of Mg from electrolysis of molten MgCl2 if the applied electromotive force is 3.00 V. Assume that the process is 75% efficient.Wrap-upTell me what you learned
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