Practice Problem 6

The most abundant isotope of uranium is 238U; 99.276% of the atoms in a sample of uranium are 238U.  Calculate the activity of the 238U in 1 L of a 1.00 M solution of the uranyl ion, UO22+.   Assume that the rate constant for the decay of this isotope is 4.87 x 10-18 disintegrations per second.


79.2 mCi.

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