0
What total mass of a 16 gram sample of 60co will remain unchanged after 15.8 years?
Wiki User
∙ 13y ago
The half-life of 27Co60 is about 5.27 years. 15.8 years is 3 half-lives, so 0.53 or 0.125 of the original sample of 16 g will remain, that being 2 g.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How much cesium would remain from a 10 g sample after 2 years?
5g would remain
How much cesium would remain from a 10g sample after 4 years?
I suppose that you think to the radioactive isotope Cs-17; After 4 years remain 9,122 g.
How many years have past if only 12.5 of carbon 14 remain in an ancient sample?
This time is 17 190 years.
How much cesium(half life2 years) would remain from a 10 g sample after 4 years?
2 1/2 g
how much cesium (half-life = 2 years) would remain from a 10 g sample after 2 years?
2 1/2 g
Can a species remain unchanged for hundreds of thousands of years according to evolution?
In theory, they can remain unchanged for their entire existence. However, in practise, nature isn't so nice and evolution happens eventually.
How much cesium would remain from a 10 g sample after 2 years?
5g would remain
What fraction of a radium sample will remain after 3240?
The answer depends on 3240 WHAT: seconds, days, years?
How much cesium would remain from a 10g sample after 4 years?
I suppose that you think to the radioactive isotope Cs-17; After 4 years remain 9,122 g.
How many years have past if only 12.5 of carbon 14 remain in an ancient sample?
This time is 17 190 years.
What is the total number of years that must pass before only 25.00 grams of an original 100.0 gram sample of c-14 remains unchanged?
25/100 = 1/4 of the original sample. The "half-life" must pass twice, yielding (1/2) x (1/2) = 1/4 of the original sample. The half-life of Carbon-14 is listed as ( 5,730 ± 40 ) years. Twice that is ( 11,460 ± 80 ) years
How many total years may a president remain in office?
The president can remain in office for 2 four year terms . A total of eight years maximum
How long does it take for a baseball bat to decompose?
In warm wet conditions leather will decompose in several years. In dry conditions leather will remain unchanged for hundreds of years.
How much cesium (half-life2 years) would remain from a 10 g sample after 2 years?
2 1/2 g
How much cesium ( half-life2 years) would remain from a 10 g sample after 4 years?
2 1/2 g
How much cesium(half life2 years) would remain from a 10 g sample after 4 years?
2 1/2 g
How much of an 800-gram sample of potassium-40 will remain after 3.9109 years of radioactive decay?
100 grams
