Question

Cesium-137 has a half life of 30.0 years. If initially there are 8.0 kg of cesium-137 present in a sample, how many kg will remain after 60.0 years?
k = 0.693/t<sub>1/2</sub> and substitute k into the equation below.

ln(No/N) = kt
No = 8 kg
N = ?
k from above
t = 60.0 years.

Related Questions

The half life of cesium-137 is 30 years. Suppose we have a 10-g sample. a)Find a function that mod... Suppose a sample of Cesium-137 with initial mass of 200 grams decays to a mass of 160 grams voer the... The cesium-131 nuclide has a half life of 30 years. After 90 years, about 6g remain. What is the ori... Cesium-137 is part of the nuclear waste produced by uranium-235 fission. The half-life of cesium-137...