The quanity, Q, of radioactive carbon-14 remaining...

The quanity, Q, of radioactive carbon-14 remaining t yearsafter an organism dies is given by the formulaQ-Qoe-0.000121t where Q0 is theinitial quanity.
a. A skull uncovered at an archeological dig has 15% of theoriginal amount of carbon-14 present. Estimate its age.
b. Calculate the half-life of carbon-14
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    Answers ( 1 )

    1. neea erkkila
      neea erkkila

      a) the amount of carbon-14 is 15% of the original,or . plug this into the equation and solve for t:

      the Q0's cancel:



      (answer)
      b) the half life is where the carbon is half gone, so:

      (answer)

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