ISU CHEM 178 - Worksheet 21 (2 pages)

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Worksheet 21



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Worksheet 21

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Pages:
2
School:
Iowa State University
Course:
Chem 178 - General Chemstry Ii

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Exam 3 Worksheet 21 Supplemental Instruction Iowa State University Leader Course Instructor Date Seth Chem 178 Kingston Monday 4 5 10 Announcements 1 Exam 3 Wednesday April 14 Warmup 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 Problem Electrolysis Problem Useful information 1 J 1 C V 1 A 1 C s 1 W 1 J s F 96485 C mol 1 kWh 3 6 x 106 J The 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 up Tell me what you learned today



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