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Molybdenum-99 has a half-life of 66 hours. After 132 hours how much of an initial sample of 10 ci of Mo-99 would remain?
2.5
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Molybdenum-99 has a half-life of 66 hours. After132 hours how much on initial sample of 10 Ci of Mo-99 would remain?
To determine the remaining amount of Molybdenum-99 after 132 hours, we can use the half-life formula. Since the half-life is 66 hours, after 132 hours (which is two half-lives), the initial sample of 10 Ci will be reduced by half twice. Thus, after the first half-life, 5 Ci remains, and after the second half-life, 2.5 Ci will remain.
What fraction of a radium sample will remain after 3240?
The answer depends on 3240 WHAT: seconds, days, years?
How much Cu-64 would remain from a 2 mg sample after 12 hours?
1mg
How much Cu -64 would remain from 2mg sample after 12 hours?
Copper-64 (Cu-64) has a half-life of approximately 12.7 hours. After one half-life (12.7 hours), half of the original sample would remain. Therefore, from a 2 mg sample, after 12 hours, approximately 1 mg of Cu-64 would remain, as it has not yet fully completed one full half-life.
If you had a 100 gram sample of plutonium how much would remain in 43 years?
Plutonium-239 has a half-life of about 24,100 years, meaning it takes that long for half of a sample to decay. In 43 years, which is much shorter than the half-life, only a tiny fraction of the plutonium would decay. Therefore, after 43 years, approximately 99.83 grams of the original 100-gram sample would remain.
How Many Halflife Are These In A 100-year Span How Many Grams Of The Sample Would Remain At The End Of The 100 Years?
If the substance has a half-life of 10 years, there would be 10 half-lives in a 100-year span. Each half-life reduces the amount by half, so after 100 years, 1/2^10 = 1/1024 grams of the sample would remain.
What is the time needed for half of a sample of a radioactive isotope to break down to form daughter isotopes called?
halflife
How much of an 800-gram sample of potassium-40 will remain after 3.910000000000 years of radioactive decay?
Approximately 400 grams of the potassium-40 sample will remain after 3.91 years, as potassium-40 has a half-life of around 1.25 billion years. This means that half of the initial sample would have decayed by that time.
Molybdenum-99 has half a half-life of 66 hours. after 132 hours how much of an initial sample of 10 ci of mo-99 would remain?
After 132 hours, 1/4 of the initial sample of 10 Ci of Mo-99 would remain. Since the half-life is 66 hours, after 66 hours half of the sample would remain (5 Ci), and after another 66 hours (totaling 132 hours), half of that remaining amount would be left.
A sample of radioactive isotope has a halflife of 1 day how much of the original sample will be left at the end of the fourth day?
If a sample of radioactive material has a half-life of one week the original sample will have 50 percent of the original left at the end of the second week. The third week would be 25 percent of the sample. The fourth week would be 12.5 percent of the original sample.
What is the mass (by difference) of a sample if the initial mass of the sample in the bottle was 28.81-g and the final mass of the bottle and sample was 21.33-g?
7.48
How many unchanges atoms would remain after 3 half lives if the initial sample had 600 unchanged atoms?
After 3 half-lives, half of the original sample would remain unchanged. After the 1st half-life: 300 unchanged atoms. After the 2nd half-life: 150 unchanged atoms. After the 3rd half-life: 75 unchanged atoms would remain.
How do you identify beta decay?
A sample of 187 rhenium decays to 187-omium with halflife of 41.6 billion years. If all 188 osmium are normalized isotopes.
After 6 half-lives What percentage of a radioactive sample remain?
After 6 half lives, the remaining will be (1/2)6 i.e 1/64 th of the initial amount. Hence by percentage it would be 1.5625 %
Molybdenum-99 has a half-life of 66 hours. After132 hours how much on initial sample of 10 Ci of Mo-99 would remain?
To determine the remaining amount of Molybdenum-99 after 132 hours, we can use the half-life formula. Since the half-life is 66 hours, after 132 hours (which is two half-lives), the initial sample of 10 Ci will be reduced by half twice. Thus, after the first half-life, 5 Ci remains, and after the second half-life, 2.5 Ci will remain.
After three half-lives what fraction of a radioactive sample will remain?
Approx 1/8 will remain.
How much of a 100 gram sample would remain unchanged after two hours?
This would depend on the specific sample and its stability. Without additional information, it is not possible to determine how much of the sample would remain unchanged after two hours.
