Radioactive decay can be described by the following equationIn A = In Ao - ktwhere An is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance.-1For the radioactive isotope lead-210, k is 3.30 x 10-2 yearsIf the original amount of lead-210 in a sample is 31.2 mg, how much time is needed for the amount of lead-210 that remains to fall to 15.0 mg?years

Answered: Image /qna-images/answer/f9226c41-3934-4290-8d50-27db80ace72c.jpg

Radioactive decay can be described by the following equation In A = In Ao - kt where Ao is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance. For the radioactive isotope lead-210, k is 3.30 x 10-2 -1 years If the original amount of lead-210 in a sample is 31.2 mg, how much time is needed for the amount of lead-210 that remains to fall to 15.0 mg? years

Radioactive decay can be described by the following equation In A = In Ao - kt where Ao is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance. For the radioactive isotope lead-210, k is 3.30 x 10-2 -1 years If the original amount of lead-210 in a sample is 31.2 mg, how much time is needed for the amount of lead-210 that remains to fall to 15.0 mg? years

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Classify each chemical reaction: Reaction 2Al(s) + 3ZnBr₂ (aq) → 2A1Br₂ (aq) + 3Zn (s) 2CrI₂(aq) + 3Pb(NO3)₂(aq) → 2Cr(NO3)₂(aq) + 3PbI₂ (s) Ca(s) + Br₂ (1) CaBr₂ (s) 2NaClO₂ (s) → 2NaCl(s) + 30₂ (g) Type choose one choose one choose one choose one X Ś
Radioactive decay can be described by the following equation In A = In Ao – kt where Ao is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance. For the radioactive isotope radon-222, k is 1.81 × 10-1 days. If the original amount of radon-222 in a sample is 69.9 mg, how much time is needed for the amount of radon- 222 that remains to fall to 37.8 mg? days
[References] Use the References to access important values if needed for this question. Radioactive decay can be described by the following equation In A = In Ag - kt where Ag is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance. For the radioactive isotope chromium-51, k is 2.50 x 10-2 days . If the original amount of chromium-51 in a sample is 29.2 mg, how much chromium-51 remains after 30.5 days have passed? mg Submit Answer Retry Entire Group No more group attempts remain
The radioactive nuclide Plutonium-199 has a half-life of 43.0 min. A sample is prepared that has an initial activity of 7.56 ×1011 Bq. i. How many Plutonium-199 nuclei are initially present in the sample? i. How many are present after 30.8 min? iii. What is the activity at this time?
Radioactive decay can be described by the following equation In A = In Ao – kt where Ao is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance. -1 For the radioactive isotope lead-210, k is 3.30 x 10 years If the original amount of lead-210 in a sample is 60.0 mg, how much lead-210 remains after 24.6 years have passed? mg
The half-life of radioactive strontium-90 is 28.8 years. How long would it take when only 16.5% of the original strontium-90 sample remains?
The half life for the decay of carbon-14 is 5.73 x 10³ years. Suppose the activity due to the radioactive decay of the carbon-14 in a tiny sample of an artifact made of wood from an archeological dig is measured to be 90. Bq. The activity in a similar-sized sample of fresh wood is measured to be 99. Bq. Calculate the age of the artifact. Round your answer to 2 significant digits. O years
A sample of bone is subjected to radiocarbon dating. The current decay rate observed for its carbon-14 content is 11.2 disintegrations per minute per gram of carbon. What is the age (in years) of the bone? The half-life for carbon-14 is 5.73 x 103 yrs, and the decay rate for carbon-14 in living organisms is 14.3 disintegrations per minute per gram of carbon.
In order to solve for the rate constant, k, in two steps you must: Step One Add the same expression to each side of the equation to leave the term that includes the variable by itself on the right- hand side of the expression: (Be sure that the answer field changes from light yellow to dark yellow before releasing your answer.) +[A] - kt + [A], Drag and drop your selection from the following list to complete the answer: 1 1 [A.] -[Ao] - [A.] [Ao] Submit
The half life of radium-226, the first radioactive element discovered, is 1,620 years. If a sample of material contains 16 milligrams of radium-226, how log will it tale for the sample to contain 1 milligram of radium-226?
The currently accepted value for the half-life of radiocarbon is 5,730 years. Based on that information, which of the following conclusions is correct. 1. In 2,865 years, the entire original amount of carbon-14 in the sample will be gone. 2. In 11,460 years, the entire sample will be another element. 3. In 5,730 years, half of the original sample of carbon will be gone. 4. In 5,730 years, half of the original amount of carbon-14 in the sample will be gone.
The half life for the decay of carbon-14 is 5.73 × 10³ years. Suppose the activity due to the radioactive decay of the carbon-14 in a tiny sample of an artifact made of wood from an archeological dig is measured to be 17. Bq. The activity in a similar-sized sample of fresh wood is measured to be 18. Bq. Calculate the age of the artifact. Round your answer to 2 significant digits. years x10 X