own in the figure t C As Shown In The Figurex.. Alabama State Universit om/ibisc

Question

own in the figure t C As Shown In The Figurex.. Alabama State Universit om/ibiscms/mod/ibis/view.php?id-4121196 University -CHEM 142- Fall17-NYAIRO Activities and Due Dates Quiz 8 11/20/2017 10:00 AM @ 71.3/100 Print Calculator-I Periodic Table Question 16 of 18 Map Sapling Learning Gallium-67 is a radioactive isotope used in treatment of lymphomas. If 77.8% of a 67Ga sample remains in the patient 1.31 days after injection, what is the half-life of 6 Ga? Number days O Previous Q Check AnswerNext erd

Explanation / Answer

77.8% means 77.9g of remains from 100g of sample

t = 1.31days

K   = 2.303/t log(a/a-x)

K   = 2.303/1.131log100/100-77.9

     = 2.0362*4.5248 = 9.2134days^-1

t1/2   = 0.693/K

t1/2    = 0.693/9.2134 = 0.0752days >>>>answer

    

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