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Chemistry

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32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 48.1 g of 32P, how much 32P was present 3.00 days ago?

  • Chemistry - ,

    Using half-life, calculate rate constant, k, from the following
    k = 0.693/t1/2, then substitute k into the following
    ln(No/N) = kt
    No = unknown
    N = 48.1 g.
    k from above.
    t = 3 days.

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