Question
Iodine-131, a beta emitter, has a half-life of 8 days.How many grams of a 10.0g sample of iodine-131 would remain after 56.0 days?
Answers
k = 0.693/t<sub>1/2</sub>
ln(No/N) = kt
No = 10.0g
N = unknown
k from above
t = 56
Another way to solve this:
10/2<sup>n</sup>
56 days is 7 half lives so
10/2<sup>7</sup> = ?
ln(No/N) = kt
No = 10.0g
N = unknown
k from above
t = 56
Another way to solve this:
10/2<sup>n</sup>
56 days is 7 half lives so
10/2<sup>7</sup> = ?
Related Questions
Po-210 Ia an alpha emitter with a half-life of 138 days. how many grams of Po-210 remain after 552 d...
the half-life of iodine-131 is 8 days. how much iodine-131 will be left After 35 grams sample after...
Radioactive iodine-131 decays (beta emitter) to form Xenon-131. Iodine-131 has a half-life of 8.07 d...
If the half-life of iodine-131 is 8.0 days, how much of a 100.0 mg sample of it will remain after 32...