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-   -   Half Life Problem (https://www.askmehelpdesk.com/showthread.php?t=571192)

  • Apr 18, 2011, 12:10 PM
    nat01
    Half Life Problem
    I'm stuck on half-life problems ):

    1) You have to inventory various microbiological antigen serum samples in the hospital laboratory, and you observed that there is 50.0 gram sample of antigen T-cell serum that has denatured to 12.5 grams of viable macrobiotic activity in just 14.5 days on the shelf. What is the antigen T-cell serum in your opinion?
  • Apr 18, 2011, 01:09 PM
    galactus

    There is 12.5 grams out of 50 grams remaining after 14.5 days.



    Solve for k.

    Half life is given by:



    Find k from the first equation and sub into T to find the half life.
  • Apr 19, 2011, 09:00 AM
    Unknown008

    Is it me or the question is asking for "what is the serum in your opinion?" as in "Guess its definition?" :confused:

    EDIT: Never mind, OP missed a key word in the question. -_-

    https://www.askmehelpdesk.com/math-s...ll-571193.html
  • Apr 20, 2011, 01:26 PM
    nat01
    Comment on galactus's post
    too smart of an answer for me ha ha feel so dumb didn't understand )=

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