Quiz 8 potential problems ChE 350 sp10

Quiz 8 potential problems ChE 350 sp10 - Sample question...

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Sample question for ChE 350 Spring 2010 Quiz 8 Name:________________________ 1 1. (a) Compute the voltage at 25 o C of an electrochemical cell consisting of pure lead immersed in a 0.05 M solution of Pb 2+ ions, and pure tin in a 0.25 M solution of Sn 2+ ions. [Look up the redox potentials in Callister—I’ll provide them on the quiz.] (b) Write the spontaneous electrochemical reaction. 2. If aluminum and cast iron are coupled in seawater, will one of them corrode, and if so, which one will corrode? [Look up the redox potentials in Callister—I’ll provide them on the quiz.] 3. Qi, et al. [ J. Phys. Chem. C 2009 , 113 , 6694-6698] recently found that they could make nanoporous ribbons when they immersed an alloy of Cu and Al into an aqueous corrosive solution. The scanning electron microscope images below show the microstructure of the
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Quiz 8 potential problems ChE 350 sp10 - Sample question...

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