Thursday, May 5, 2016

Spring 2016: CHEM 312 Quiz 4

Assigned: 5 May 2016
Due: 10 May 2016
2nd Due date: 13 May 2016

Use lecture notes, textbooks, Chart of the Nuclides, Table of the Isotopes, and web pages. Use the chart of the nuclides as your primary dataset for isotope half-life. Show your work or references on a separate page and save electronically. Submission of the work is not required for the 1st due date. Please use 3 significant digits for your answers. For scientific notation please use X.XXEX (i.e, 1230 as 1.23E3)

Lecture 14: Plutonium Chemistry
Lecture 15: Americium and Curium Chemistry
Lecture 16: Chemistry in Reactor Fuel
Lecture 17: Separations
Lecture 18: Nuclear Forensics

19 comments:

  1. I have completed and submitted the quiz now

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  2. Just finished and submitted the quiz!

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  3. Just finished and submitted the quiz!

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  4. This comment has been removed by the author.

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  5. I have a question about #5. I see where your answers come from, Ksp = [PuO2][OH-] which is where my spreadsheet answers differ from your answers. But when PuO2(OH)2 dissociates, isn't there 2 OH- floating around forcing the equation to be Ksp = [PuO2][OH-]2 (the OH- should be squared)?

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  6. Quiz completed and submitted yesterday. Thank you!

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  7. I have the same question about number 5 as Lena Wright. Even though the molarity I got was 1800 which does not make much sense.

    [OH]=10^-(14-1)
    [OH]=1E-13M
    [puO2]=1.8E-23/[1E-13]^2= 1.8E3M that means 1800 moles/liter?

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    Replies
    1. That is the same answer i got on the first one.

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    2. Would there be any reason in which we would not square [OH-]? I found that I obtain the same answers as those posted in the answer sheet when [OH-] is not squared.

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    3. yes, the equation and answer above is correct. This would mean highly soluble at pH 1. The correction will be post.

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  8. Improved Quiz 4 answers now available. Correct Question 5 included! Thanks for the comments, really appreciated!

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  9. All done with the Quiz! Thanks for the help during office hours.

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